python package dependencies and virtual environment management tool Poetry

What is Poetry?

--Manage python package dependencies --You can build a virtual environment dedicated to the project ( --You can specify the dependent python version --You can specify the dependent package version --A tool similar to ruby ​​bundle

Installation

https://python-poetry.org/docs/ Install with python script for mac

curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -

Install using pip

pip install --user poetry

It is convenient to set

If you set as below, the virtual environment will be created under the project folder, and vscode can automatically identify the python environment, so vscode intellisense will work.

poetry config virtualenvs.in-project true

Introduced poetry in project

Create pyproject.toml (like ruby ​​gemfile) with the following command

poetry init

Add dependent packages

Install the dependent package into the virtual environment with the following command, and the dependent package is specified in pyproject.toml

poetry add pendulum
poetry add pendulum@^2.0.5  #If you also specify version
poetry add "pendulum>=2.0.5"  #If you also specify version

Install the dependent packages set in pyproject.toml, poetry.lock

poetry install

Update package

If you want to update all dependent packages

poetry update

If you want to update a specific package

poetry update fastapi

When you want to run code in a virtual environment

If you want to enter a virtual environment

poetry shell

If you want to do something in a virtual environment

poetry run uvicorn main:app --reload

If you want to display package dependencies

poetry show --tree

reference

https://python-poetry.org/

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