【Python】poetryの基本的な使い方をまとめてみた

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poetry new test

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poetry init

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poetry install

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poetry install --sync

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poetry lock

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poetry add requests

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poetry update

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poetry remove requests

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poetry run python test_module.py

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poetry show

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poetry show --tree

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poetry env list

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poetry env info

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poetry env remove poetry-sample-project-xS3fZVNL-py3.12

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poetry self update

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poetry show requests

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# ベースイメージとしてPythonを使用
FROM python:3.12

# 作業ディレクトリを作成
WORKDIR /workspace

# pipを更新
RUN pip install --upgrade pip

# Poetryをインストール
RUN pip install poetry

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version: "3"
services:
  poetry:
    container_name: "poetry-sample"
    build:
      context: .
      dockerfile: Dockerfile
    volumes:
      # バインドマウント
      - .:/workspace
    tty: true

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docker comopse up -d

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.
|-- docker-compose.yml
`-- dockerfile

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root@4afb2b283765:/workspace# pip show poetry
Name: poetry
Version: 1.8.3
Summary: Python dependency management and packaging made easy.
Home-page: https://python-poetry.org/
Author: Sébastien Eustace
Author-email: sebastien@eustace.io
License: MIT
Location: /usr/local/lib/python3.12/site-packages
Requires: build, cachecontrol, cleo, crashtest, dulwich, fastjsonschema, installer, keyring, packaging, pexpect, pkginfo, platformdirs, poetry-core, poetry-plugin-export, pyproject-hooks, requests, requests-toolbelt, shellingham, tomlkit, trove-classifiers, virtualenv
Required-by: poetry-plugin-export
root@4afb2b283765:/workspace#

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import requests

def fetch_data(url):
    try:
        # 指定したURLにGETリクエストを送信
        response = requests.get(url)

        # レスポンスのステータスコードを表示
        print(f"ステータスコード: {response.status_code}")

        # レスポンスの内容を表示
        if response.status_code == 200:
            print("データ:")
            print(response.text)
        else:
            print("データを取得できませんでした。")
    except requests.exceptions.RequestException as e:
        print(f"リクエスト中にエラーが発生しました: {e}")

if __name__ == "__main__":
    # 取得したいデータのURL
    url = "https://jsonplaceholder.typicode.com/todos/1"
    fetch_data(url)

# 実行結果
# ステータスコード: 200
# データ:
# {
#   "userId": 1,
#   "id": 1,
#   "title": "delectus aut autem",
#   "completed": false
# }

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poetry new poetry-sample-project

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.
├── docker-compose.yml
├── dockerfile
└── poetry-sample-project
    ├── README.md
    ├── poetry.lock
    ├── poetry_sample_project
    │   ├── __init__.py
    │   └── test_module.py
    ├── pyproject.toml
    └── tests
        └── __init__.py

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"

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

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poetry add requests

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"
requests = "^2.32.3"

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

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root@4afb2b283765:/workspace/poetry-sample-project# poetry run python poetry_sample_project/test_module.py
ステータスコード: 200
データ:
{
  "userId": 1,
  "id": 1,
  "title": "delectus aut autem",
  "completed": false
}

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.
|-- docker-compose.yml
|-- dockerfile
`-- test_module.py

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poetry init

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.
|-- docker-compose.yml
|-- dockerfile
|-- pyproject.toml
`-- test_module.py

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"

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

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poetry install

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$ poetry install
Installing dependencies from lock file

pyproject.toml changed significantly since poetry.lock was last generated. Run `poetry lock [--no-update]` to fix the lock file.

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poetry lock

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"

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

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poetry add requests

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"
requests = "^2.32.3"

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

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poetry add black flake8 --group dev

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxxxxxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"
requests = "^2.32.3"

[tool.poetry.group.dev.dependencies]
black = "^24.8.0"
flake8 = "^7.1.1"

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

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poetry add pytest pytest-cov --group test

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxxxxxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"
requests = "^2.32.3"

[tool.poetry.group.dev.dependencies]
black = "^24.8.0"
flake8 = "^7.1.1"

[tool.poetry.group.test.dependencies]
pytest = "^8.3.2"
pytest-cov = "^5.0.0"

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

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poetry add pydantic --group sample

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxxxxxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"
requests = "^2.32.3"

[tool.poetry.group.dev.dependencies]
black = "^24.8.0"
flake8 = "^7.1.1"

[tool.poetry.group.test.dependencies]
pytest = "^8.3.2"
pytest-cov = "^5.0.0"

[tool.poetry.group.sample.dependencies]
pydantic = "^2.8.2"

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

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root@aa632dfa840c:/workspace# poetry show
black              24.8.0    The uncompromising code formatter.
certifi            2024.8.30 Python package for providing Mozilla's CA Bundle.
charset-normalizer 3.3.2     The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet.
click              8.1.7     Composable command line interface toolkit
coverage           7.6.1     Code coverage measurement for Python
flake8             7.1.1     the modular source code checker: pep8 pyflakes and co
idna               3.8       Internationalized Domain Names in Applications (IDNA)
iniconfig          2.0.0     brain-dead simple config-ini parsing
mccabe             0.7.0     McCabe checker, plugin for flake8
mypy-extensions    1.0.0     Type system extensions for programs checked with the mypy type checker.
packaging          24.1      Core utilities for Python packages
pathspec           0.12.1    Utility library for gitignore style pattern matching of file paths.
platformdirs       4.2.2     A small Python package for determining appropriate platform-specific dirs, e.g. a `user data dir`.
pluggy             1.5.0     plugin and hook calling mechanisms for python
pycodestyle        2.12.1    Python style guide checker
pyflakes           3.2.0     passive checker of Python programs
pytest             8.3.2     pytest: simple powerful testing with Python
pytest-cov         5.0.0     Pytest plugin for measuring coverage.
requests           2.32.3    Python HTTP for Humans.
urllib3            2.2.2     HTTP library with thread-safe connection pooling, file post, and more.

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[tool.poetry]
name = "poetry-sample-project"
version = "0.1.0"
description = ""
authors = ["xxxxxxxxxxxxxxxxxxxxx"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"
requests = "^2.32.3"

[tool.poetry.group.dev.dependencies]
black = "^24.8.0"
flake8 = "^7.1.1"

[tool.poetry.group.test.dependencies]
pytest = "^8.3.2"
pytest-cov = "^5.0.0"

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

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.
|-- docker-compose.yml
|-- dockerfile
|-- poetry.lock
|-- pyproject.toml
`-- test_module.py

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# 仮想環境一覧表示
root@16cfe12632ec:/workspace# poetry env list
poetry-sample-project-xS3fZVNL-py3.12 (Activated)

# 仮想環境削除
root@16cfe12632ec:/workspace# poetry env remove poetry-sample-project-xS3fZVNL-py3.12
Deleted virtualenv: /root/.cache/pypoetry/virtualenvs/poetry-sample-project-xS3fZVNL-py3.12

# 削除後確認
root@16cfe12632ec:/workspace# poetry env list

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poetry install

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poetry install --without dev,test

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poetry install --only dev

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poetry install --only test