pyenv-win, Poetryを使ってPythonの環境構築（Windows）

PS C:\WINDOWS\system32> Invoke-WebRequest -UseBasicParsing -Uri "https://raw.githubusercontent.com/pyenv-win/pyenv-win/master/pyenv-win/install-pyenv-win.ps1" -OutFile "./install-pyenv-win.ps1"; &"./install-pyenv-win.ps1"

& : File C:\WINDOWS\system32\install-pyenv-win.ps1 cannot be loaded because running scripts is disabled on this         system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.            At line:1 char:173
+ ... n.ps1" -OutFile "./install-pyenv-win.ps1"; &"./install-pyenv-win.ps1"
+                                                 ~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : SecurityError: (:) [], PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess

PS C:\WINDOWS\system32> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope LocalMachine

Execution Policy Change
The execution policy helps protect you from scripts that you do not trust. Changing the execution policy might expose
you to the security risks described in the about_Execution_Policies help topic at
https:/go.microsoft.com/fwlink/?LinkID=135170. Do you want to change the execution policy?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "N"): y

PS C:\WINDOWS\system32> Invoke-WebRequest -UseBasicParsing -Uri "https://raw.githubusercontent.com/pyenv-win/pyenv-win/master/pyenv-win/install-pyenv-win.ps1" -OutFile "./install-pyenv-win.ps1"; &"./install-pyenv-win.ps1"

    Directory: C:\Users\<username>


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        11/15/2023   9:22 PM                .pyenv
pyenv-win is successfully installed. You may need to close and reopen your terminal before using it.

pyenv --version
# -> pyenv 3.1.1

pyenv install --list

pyenv install 3.10.11

:: [Info] ::  Mirror: https://www.python.org/ftp/python
:: [Downloading] ::  3.10.11 ...
:: [Downloading] ::  From https://www.python.org/ftp/python/3.10.11/python-3.10.11-amd64.exe
:: [Downloading] ::  To   C:\Users\<username>\.pyenv\pyenv-win\install_cache\python-3.10.11-amd64.exe
:: [Installing] ::  3.10.11 ...
:: [Info] :: completed! 3.10.11

pyenv global 3.10.11

pyenv version
# -> 3.10.11 (set by C:\Users\<username>\.pyenv\pyenv-win\version)

python

Python 3.10.11 (tags/v3.10.11:7d4cc5a, Apr  5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>

PS C:\WINDOWS\system32> (Invoke-WebRequest -Uri https://install.python-poetry.org -UseBasicParsing).Content | python -

Retrieving Poetry metadata

# Welcome to Poetry!

This will download and install the latest version of Poetry,
a dependency and package manager for Python.

It will add the `poetry` command to Poetry's bin directory, located at:

C:\Users\<username>\AppData\Roaming\Python\Scripts

You can uninstall at any time by executing this script with the --uninstall option,
and these changes will be reverted.

Installing Poetry (1.7.0)
Installing Poetry (1.7.0): Creating environment
Installing Poetry (1.7.0): Installing Poetry
Installing Poetry (1.7.0): Creating script
Installing Poetry (1.7.0): Done

Poetry (1.7.0) is installed now. Great!

To get started you need Poetry's bin directory (C:\Users\<username>\AppData\Roaming\Python\Scripts) in your `PATH`
environment variable.

Alternatively, you can call Poetry explicitly with `C:\Users\<username>\AppData\Roaming\Python\Scripts\poetry`.

You can test that everything is set up by executing:

`poetry --version`

%APPDATA%\pypoetry\venv\Scripts

poetry --version
# Poetry (version 1.7.0)

poetry config virtualenvs.in-project true

poetry new poetry-test # poetry-test はプロジェクト名です
# -> Created package poetry_test in poetry-test

poetry new poetry-test --name prjname

\---poetry-test
    |   pyproject.toml
    |   README.md
    |
    +---prjname
    |       __init__.py
    |
    \---tests
            __init__.py

pyenv local 3.10.11  # 3.10.11は今回インストールしたPythonのバージョン

cd poetry-test
poetry add numpy

Creating virtualenv prjname in \<path-to-project>\poetry-test\.venv
Using version ^1.26.2 for numpy

Updating dependencies
Resolving dependencies... (0.1s)

Package operations: 1 install, 0 updates, 0 removals

  • Installing numpy (1.26.2)

Writing lock file

.venv (directory)
poetry.lock (file)

poetry shell

(prjname-py3.10) PS \<path-to-project>\poetry-test>

import numpy as np

a = np.arange(0, 10, 1)
print(a)

(prjname-py3.10) PS \<path-to-project>\poetry-test> python .\prjname\poetry-test.py
# [0 1 2 3 4 5 6 7 8 9]

poetry init

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

Package name [venv_test]:
Version [0.1.0]:
Description []:
Author [xxxx <yyyy>, n to skip]:
License []:
Compatible Python versions [^3.10]:

Would you like to define your main dependencies interactively? (yes/no) [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):

Would you like to define your development dependencies interactively? (yes/no) [yes]
Package to add or search for (leave blank to skip):

Generated file

[tool.poetry]
name = "venv_test"
version = "0.1.0"
description = ""
authors = ["xxxx <yyyy>"]
readme = "README.md"

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


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


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

poetry export -f requirements.txt --output requirements.txt

PS C:\WINDOWS\system32> (Invoke-WebRequest -Uri https://install.python-poetry.org -UseBasicParsing).Content | python - --uninstall
# -> Removing Poetry (1.7.0)

deactivate