dmypy crash

[johnfn]

Crash Report

dmypy run

Traceback

(env) grantmathews@grants-mbp gem % dmypy run
Daemon crashed!
Traceback (most recent call last):
  File "mypy/dmypy_server.py", line 237, in serve
  File "mypy/dmypy_server.py", line 286, in run_command
  File "mypy/dmypy_server.py", line 354, in cmd_run
  File "mypy/dmypy_server.py", line 433, in check
  File "mypy/dmypy_server.py", line 650, in fine_grained_increment_follow_imports
  File "mypy/dmypy_server.py", line 762, in find_reachable_changed_modules
KeyError: 'sqlite3.dbapi2'

To Reproduce

Sorry, can't provide better repro steps

Your Environment

see #18751

• Mypy version used:
• Mypy command-line flags:
• Mypy configuration options from mypy.ini (and other config files):
• Python version used:
• Operating system and version: