python3.6 maximum recursion depth exceeded

[DanAlbert]

This might be related to #2388, but I'm unsure. This doesn't reproduce with Python 3.5. Not sure if it matters, but I'm on Debian.

Steps to reproduce

1. Clone https://github.com/DanAlbert/pylint-recursion-exceeded-repro-case
2. bash run.sh

Current behavior

RecursionError: maximum recursion depth exceeded

Full log here: https://github.com/DanAlbert/pylint-recursion-exceeded-repro-case/blob/master/log

Expected behavior

Pylint runs successfully

pylint --version output

$ pylint --version
pylint 2.1.1
astroid 2.1.0-dev
Python 3.6.2 (default, Aug  4 2017, 14:35:04)
[GCC 6.3.0 20170516]

[pradyunsg]

I'm seeing the same error message, with a different traceback, when running on pip's codebase:

Steps to Reproduce:

1. git clone https://github.com/pypa/pip/
2. cd pip
3. pylint -d all -e refactoring ./src/pip/_internal/req/req_install.py

pylint --version

pylint 2.1.1
astroid 2.0.4
Python 3.7.0 (default, Jul  2 2018, 13:54:07)
[Clang 9.1.0 (clang-902.0.39.2)]

Traceback (clicking shows the long Traceback)

Traceback (most recent call last):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 168, in getattr
    values = self._proxied.instance_attr(name, context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 2270, in instance_attr
    context=context)
astroid.exceptions.AttributeInferenceError: 'setup_py_dir' not found on <ClassDef.InstallRequirement l.45 at 0x110f88080>.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 204, in igetattr
    get_attr = self.getattr(name, context, lookupclass=False)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 183, in getattr
    ) from exc
astroid.exceptions.AttributeInferenceError: 'setup_py_dir' not found on <Instance of pip._internal.req.req_install.InstallRequirement at 0x4631248456>.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/pradyunsg/.virtualenvs/pip/bin/pylint", line 11, in <module>
    sys.exit(run_pylint())
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/__init__.py", line 19, in run_pylint
    Run(sys.argv[1:])
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/lint.py", line 1394, in __init__
    linter.check(args)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/lint.py", line 801, in check
    self._do_check(files_or_modules)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/lint.py", line 938, in _do_check
    self.check_astroid_module(ast_node, walker, rawcheckers, tokencheckers)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/lint.py", line 1018, in check_astroid_module
    walker.walk(ast_node)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/utils.py", line 1162, in walk
    self.walk(child)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/utils.py", line 1162, in walk
    self.walk(child)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/utils.py", line 1162, in walk
    self.walk(child)
  [Previous line repeated 1 more times]
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/utils.py", line 1159, in walk
    cb(astroid)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/checkers/refactoring.py", line 961, in visit_call
    inferred = utils.safe_infer(node.func)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/pylint/checkers/utils.py", line 828, in safe_infer
    value = next(inferit)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 293, in infer_attribute
    for owner in self.expr.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 314, in infer_attribute
    yield from owner.igetattr(self.attrname, context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 214, in igetattr
    yield from self._wrap_attr(attrs, context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 223, in _wrap_attr
    yield from attr.infer_call_result(self, context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 314, in infer_attribute
    yield from owner.igetattr(self.attrname, context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 205, in igetattr
    yield from _infer_stmts(self._wrap_attr(get_attr, context), context, frame=self)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 429, in _infer_boolop
    for pair in itertools.product(*values):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 112, in yes_if_nothing_inferred
    for node in func(*args, **kwargs):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 466, in _filter_operation_errors
    for result in infer_callable(self, context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 727, in _infer_binop
    for lhs in left.infer(context=lhs_context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 112, in yes_if_nothing_inferred
    for node in func(*args, **kwargs):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 466, in _filter_operation_errors
    for result in infer_callable(self, context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 733, in _infer_binop
    for rhs in right.infer(context=rhs_context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 211, in infer_call
    for callee in self.func.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 293, in infer_attribute
    for owner in self.expr.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 429, in _infer_boolop
    for pair in itertools.product(*values):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 112, in yes_if_nothing_inferred
    for node in func(*args, **kwargs):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 466, in _filter_operation_errors
    for result in infer_callable(self, context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 727, in _infer_binop
    for lhs in left.infer(context=lhs_context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 112, in yes_if_nothing_inferred
    for node in func(*args, **kwargs):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 466, in _filter_operation_errors
    for result in infer_callable(self, context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 733, in _infer_binop
    for rhs in right.infer(context=rhs_context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 211, in infer_call
    for callee in self.func.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 293, in infer_attribute
    for owner in self.expr.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 314, in infer_attribute
    yield from owner.igetattr(self.attrname, context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 205, in igetattr
    yield from _infer_stmts(self._wrap_attr(get_attr, context), context, frame=self)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 429, in _infer_boolop
    for pair in itertools.product(*values):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 112, in yes_if_nothing_inferred
    for node in func(*args, **kwargs):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 466, in _filter_operation_errors
    for result in infer_callable(self, context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 727, in _infer_binop
    for lhs in left.infer(context=lhs_context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 112, in yes_if_nothing_inferred
    for node in func(*args, **kwargs):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 466, in _filter_operation_errors
    for result in infer_callable(self, context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 733, in _infer_binop
    for rhs in right.infer(context=rhs_context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 211, in infer_call
    for callee in self.func.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 293, in infer_attribute
    for owner in self.expr.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 812, in infer_assign
    stmts = list(self.assigned_stmts(context=context))
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1628, in infer_call_result
    yield from returnnode.value.infer(context)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 211, in infer_call
    for callee in self.func.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 293, in infer_attribute
    for owner in self.expr.infer(context):
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/decorators.py", line 89, in wrapped
    generator = _func(node, context, **kwargs)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/inference.py", line 188, in infer_name
    context = context.clone()
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/site-packages/astroid/context.py", line 96, in clone
    clone = InferenceContext(copy.copy(self.path), inferred=self.inferred)
  File "/Users/pradyunsg/.virtualenvs/pip/lib/python3.7/copy.py", line 72, in copy
    cls = type(x)
RecursionError: maximum recursion depth exceeded while calling a Python object

[PCManticore]

Oh that's bad, thanks for creating an issue, folks!

[DanAlbert]

It's surprisingly simple to work around. If my repro case is simplified any more (even keeping the same logic, just removing an intermediate) it no longer crashes.

[PCManticore]

This seems to have been fixed with the release of pylint 2.4.3 and astroid 2.3.2. Can you give it a go and let us know if you can still reproduce the issue?

[DanAlbert]

Yep, the repro case no longer crashes. Thanks!