python windows environment construction

◆ Building a python development environment using VS Code in a windows environment

・ Construction environment 　　windows10 　　python 　　VSCode 　　tortoiseGit

・ Reference site Python Environment Construction Guide 　https://www.python.jp/install/windows/install.html

◆ python body

1. Download 　　　https://www.python.org/downloads/ Check "Add Python 3.x to PATH" during installation

2. Check the main unit after installation 　　　C:\Users\testuser1>python 　　　quit()

3. Python launcher confirmation 　　　C:\Users\testuser1>py 　　　quit()

◆VScode

1. Download and install 　　https://code.visualstudio.com/download

2. Launch the editor and add extensions ・ Japanese Language Pack for Visual Studio Code ・ Git Graph

◆ Create python sample code sample.py (If you don't install the package with pip, you will get an error at runtime)

import requests 　　　print(requests.get("https://www.python.jp").text)

◆ Virtual environment Reference https://www.python.jp/install/windows/venv.html

1. Create a project folder 　　　　C:\Users\user1>mkdir sample1

2. Create virtual environment folder 　　　　C:\Users\user1\sample1>python -m venv .venv

--For command prompt 3. Virtual environment activate (cmd) 　　　　C:\Users\user1\sapmle1>.venv\Scripts\activate.bat 　　　　(.venv) C:\Users\user1\sample1>

4. Install the package in the virtual environment with pip 　　　　(.venv) C:\Users\user1\sample1>python -m pip install requests

5. Virtual environment deactivate 　　　　(.venv) C:\Users\user1\sample1> deactivate 　　　　C:\Users\user1\sample1>

--for powershell ・ Grant execution authority of powershell 　　　　PS C:> Set-ExecutionPolicy RemoteSigned -Scope CurrentUser -Force

・ Virtual environment activate (ps) 　　　　PS C:\Users\user1\sapmle1> .venv\Scripts\activate.ps1 　　　　(.venv) C:\Users\user1\sample1>

◆ C compiler installation

1. Select "Visual Studio 2019 Tools" (at the bottom of the downloads page) 　　　　https://visualstudio.microsoft.com/ja/downloads/

2. Download "Build Tools for Visual Studio 2019"

3. Launch the installer and select "C ++ Build Tools" to install

◆ Virtual environment operation method

1. Output the package of your virtual environment to requirements.txt 　　　　(.venv) C:\Users\user1\sample1>python -m pip freeze > requirements.txt

2. Refer to requirements.txt to install the package in the virtual environment 　　　　(.venv) C:\Users\user1\sample1>python -m pip install -r requirements.txt

◆ Separate virtual environments for each python version

・ 3.7 series 　　　　C:\Users\user1>py -3.7 -m venv py37env 　　　　C:\Users\user1>py37env\Scripts\activate.bat

・ 3.8 series 　　　　C:\Users\user1>py -3.8 -m venv py38env 　　　　C:\Users\user1>py38env\Scripts\activate.bat

◆ Version control tool ・ Git 　　　　https://git-scm.com/download/win

・ TortoiseGit & Language Packs 　　　　https://tortoisegit.org/download/

・ TortoiseGit reference video 　　　　https://youtu.be/5NEuiuqElio