Poetry 的使用

  • 什么是poetry？

- 一款python 包的管理和打包工具。 

  • 作为包的管理工具， 我们怎么在项目中 应用呢？

方法1. （适用于已经存在的项目并想用poetry 进行管理， 从模块安装开始）

步骤1. poetry init.

在此过程中， poetry 会引导用户输入一些关于包的关键信息， 比如包名称， 包的dependency 模块。 参见下面详细log.

此过程会生成pyproject.toml 文件。 

D:\python_poetry2>poetry init

This command will guide you through creating your pyproject.toml config.

Package name [python_poetry2]:  pac3
Version [0.1.0]:
Description []:
Author [DESKTOP-7N9ITBC\mli <lmlm004@qq.com>, n to skip]:
Invalid author string. Must be in the format: John Smith <john@example.com>
Author [DESKTOP-7N9ITBC\mli <lmlm004@qq.com>, n to skip]:  n
License []:
Compatible Python versions [^3.10]:

Would you like to define your main dependencies interactively? (yes/no) [yes] yes
You can specify a package in the following forms:
  - A single name (requests): this will search for matches on PyPI
  - A name and a constraint (requests@^2.23.0)
  - A git url (git+https://github.com/python-poetry/poetry.git)
  - A git url with a revision (git+https://github.com/python-poetry/poetry.git#develop)
  - A file path (../my-package/my-package.whl)
  - A directory (../my-package/)
  - A url (https://example.com/packages/my-package-0.1.0.tar.gz)

Package to add or search for (leave blank to skip): fastapi
Found 20 packages matching fastapi
Showing the first 10 matches

Enter package # to add, or the complete package name if it is not listed []:
 [ 0] fastapi
 [ 1] aioauth-fastapi
 [ 2] fastapi-manage
 [ 3] fastapi-oracle
 [ 4] fastapi-viewsets
 [ 5] myapi-fastapi
 [ 6] fastapi-utils
 [ 7] fastapi-crud
 [ 8] fastapi-misskey
 [ 9] fastapi-analytics
 [10]
 > 0
Enter the version constraint to require (or leave blank to use the latest version):
Using version ^0.88.0 for fastapi

Add a package (leave blank to skip):

Would you like to define your development dependencies interactively? (yes/no) [yes] yes
Package to add or search for (leave blank to skip): pytest
Found 20 packages matching pytest
Showing the first 10 matches

Enter package # to add, or the complete package name if it is not listed []:
 [ 0] pytest
 [ 1] pytest123
 [ 2] 131228_pytest_1
 [ 3] pytest-pingguo-pytest-plugin
 [ 4] pytest-symbols
 [ 5] pytest-circleci
 [ 6] pytest-parallel
 [ 7] pytest-grpc
 [ 8] pytest-vnc
 [ 9] pytest-vcrpandas
 [10]
 > 0
Enter the version constraint to require (or leave blank to use the latest version):
Using version ^7.2.0 for pytest

Add a package (leave blank to skip):

Generated file

[tool.poetry]
name = "pac3"
version = "0.1.0"
description = ""
authors = ["Your Name <you@example.com>"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.10"
fastapi = "^0.88.0"

[tool.poetry.group.dev.dependencies]
pytest = "^7.2.0"

[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"


Do you confirm generation? (yes/no) [yes] yes
View Code

步骤2. 在上面init 的过程中， poetry 并没有真正的去安装模块。 执行命令 poetry install 来创建virtualenv， 并且在virtual env 中安装模块。 

Option Step: Poetry 更改国内安装源。 (49条消息) Python 包管理工具poetry配置国内PyPI镜像源_y_bccl27的博客-CSDN博客_poetry 源

Option Step: Poetry 会创建virtualenv， 如果你想更改virtual env 的路径， 可以用下面这些命令

poetry config --list
cache-dir = "C:\\Code\\python-venv\\poetry-config"   # 此路径是virtualenv 的默认路径， 想改就改

 步骤3： 在步骤2中，poetry 已经创建了virtualenv， 那么怎么才能activate 这个virtualenv 呢？ here U are. 

poetry shell

Tips:

  • 我们一般安装模块用 “pip install ***”， 如何让poetry 知道我的项目新加了模块呢？
# 方法1
poetry add TOML 

# 方法2
更改pyproject.toml 的 [tool.poetry.dependencies] 章节， 比如
[tool.poetry.dependencies]
python = "^3.10"
fastapi = "^0.88.0"

 

posted on 2022-12-07 17:59  MissLi12138  阅读(951)  评论(0)  编辑  收藏  举报

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