cli.md

Commands

You've already learned how to use the command-line interface to do some things. This chapter documents all the available commands.

To get help from the command-line, simply call poetry or poetry list to see the complete list of commands, then --help combined with any of those can give you more information.

As Poetry uses cleo you can call commands by short name if it's not ambiguous.

poetry up

calls poetry update.

Global options

• --verbose (-v|vv|vvv): Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug.
• --help (-h) : Display help information.
• --quiet (-q) : Do not output any message.
• --ansi: Force ANSI output.
• --no-ansi: Disable ANSI output.
• --version (-V): Display this application version.

new

This command will help you kickstart your new Python project by creating a directory structure suitable for most projects.

poetry new my-package

will create a folder as follows:

my-package
├── pyproject.toml
├── README.rst
├── my_package
│   └── __init__.py
└── tests
    ├── __init__.py
    └── test_my_package

If you want to name your project differently than the folder, you can pass the --name option:

poetry new my-folder --name my-package

If you want to use a src folder, you can use the --src option:

poetry new --src my-package

That will create a folder structure as follows:

my-package
├── pyproject.toml
├── README.rst
├── src
│   └── my_package
│       └── __init__.py
└── tests
    ├── __init__.py
    └── test_my_package

init

This command will help you create a pyproject.toml file interactively by prompting you to provide basic information about your package.

It will interactively ask you to fill in the fields, while using some smart defaults.

poetry init

Options

• --name: Name of the package.
• --description: Description of the package.
• --author: Author of the package.
• --dependency: Package to require with a version constraint. Should be in format foo:1.0.0.
• --dev-dependency: Development requirements, see --require.

install

The install command reads the pyproject.toml file from the current project, resolves the dependencies, and installs them.

poetry install

If there is a poetry.lock file in the current directory, it will use the exact versions from there instead of resolving them. This ensures that everyone using the library will get the same versions of the dependencies.

If there is no poetry.lock file, Poetry will create one after dependency resolution.

You can specify to the command that you do not want the development dependencies installed by passing the --no-dev option.

poetry install --no-dev

You can also specify the extras you want installed by passing the --E|--extras option (See Extras for more info)

poetry install --extras "mysql pgsql"
poetry install -E mysql -E pgsql

Options

• --no-dev: Do not install dev dependencies.
• --extras (-E): Features to install (multiple values allowed).

update

In order to get the latest versions of the dependencies and to update the poetry.lock file, you should use the update command.

poetry update

This will resolve all dependencies of the project and write the exact versions into poetry.lock.

If you just want to update a few packages and not all, you can list them as such:

poetry update requests toml

Options

• --dry-run : Outputs the operations but will not execute anything (implicitly enables --verbose).

add

The add command adds required packages to your pyproject.toml and installs them.

If you do not specify a version constraint, poetry will choose a suitable one based on the available package versions.

poetry add requests pendulum

You can also add git dependencies:

poetry add pendulum --git https://github.com/sdispater/pendulum.git

or make them point to a local directory or file:

poetry add my-package --path ../my-package/
poetry add my-package --path ../my-package/dist/my-package-0.1.0.tar.gz
poetry add my-package --path ../my-package/dist/my_package-0.1.0.whl

Options

• --dev (-D): Add package as development dependency.
• --git: The url of the Git repository.
• --path: The path to a dependency.
• --extras (-E): Extras to activate for the dependency.
• --optional : Add as an optional dependency.
• --dry-run : Outputs the operations but will not execute anything (implicitly enables --verbose).

remove

The remove command removes a package from the current list of installed packages

poetry remove pendulum

Options

• --dev (-D): Removes a package from the development dependencies.
• --dry-run : Outputs the operations but will not execute anything (implicitly enables --verbose).

show

To list all of the available packages, you can use the show command.

poetry show

If you want to see the details of a certain package, you can pass the package name.

poetry show pendulum

name        : pendulum
version     : 1.4.2
description : Python datetimes made easy

dependencies:
 - python-dateutil >=2.6.1
 - tzlocal >=1.4
 - pytzdata >=2017.2.2

Options

• --tree: List the dependencies as a tree.
• --latest (-l): Show the latest version.
• --outdated (-o): Show the latest version but only for packages that are outdated.

build

The build command builds the source and wheels archives.

poetry build

Note that, at the moment, only pure python wheels are supported.

Options

• --format (-F): Limit the format to either wheel or sdist.

publish

This command publishes the package, previously built with the build command, to the remote repository.

It will automatically register the package before uploading if this is the first time it is submitted.

poetry publish

It can also build the package if you pass it the --build option.

Options

• --repository (-r): The repository to register the package to (default: pypi). Should match a repository name set by the config command.
• --username (-u): The username to access the repository.
• --password (-p): The password to access the repository.

config

The config command allows you to edit poetry config settings and repositories.

poetry config --list

Usage

poetry config [options] [setting-key] [setting-value1] ... [setting-valueN]

setting-key is a configuration option name and setting-value1 is a configuration value. See Configuration for all available settings.

Options

• --unset: Remove the configuration element named by setting-key.
• --list: Show the list of current config variables.

run

The run command executes the given command inside the project's virtualenv.

poetry run python -V

It can also executes one of the scripts defined in pyproject.toml.

So, if you have a script defined like this:

[tool.poetry.scripts]
my-script = "my_module:main"

You can execute it like so:

poetry run my-script

Note that this command has no option.

check

The check command validate the structure of the pyproject.toml file and returns a detailed report is there are any errors.

poetry check

search

This command searches for packages on a remote index.

poetry search requests pendulum

Options

• --only-name (-N): Search only in name.

lock

This command locks (without installing) the dependencies specified in pyproject.toml.

poetry lock

version

This command bumps the version of the project and writes the new version back to pyproject.toml

The new version should ideally be a valid semver string or a valid bump rule: patch, minor, major, prepatch, preminor, premajor, prerelease.