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The file should be placed in your project's and contain only the version number . File Name: .python-version (must start with a dot). File Content: A single line with the version string. Example: 3.12.2 or simply 3.12 . How to Create It
Commit .python-version to version control. Add *.python-version to .gitignore only if you have a complex monorepo strategy (discussed later).
Notes:
Often preferred for specific Machine Learning projects due to library compatibility [5.2]. The "80/20" Efficiency Rule
To make .python-version work smoothly in a team of 2 or 200, follow these guidelines:
If you use pyenv , you can set a local version for your current directory with a single command: pyenv local 3.11.5 Use code with caution.
Python remains the leading programming language in 2026, driven by its dominance in AI, ease of learning, and a robust ecosystem [5.5]. As of April 2026, is the latest stable release, offering a refined balance of language improvements and library updates [5.6]. Core Features & Performance
python -VV (double "V" for more metadata) 2. Within a Python Script ( .py file)
Which or IDE (like VS Code or PyCharm) you prefer?
Here's a brief history of major Python versions:
: Including the file in Git ensures all contributors use the same interpreter version.
The file should be placed in your project's and contain only the version number . File Name: .python-version (must start with a dot). File Content: A single line with the version string. Example: 3.12.2 or simply 3.12 . How to Create It
Commit .python-version to version control. Add *.python-version to .gitignore only if you have a complex monorepo strategy (discussed later).
Notes:
Often preferred for specific Machine Learning projects due to library compatibility [5.2]. The "80/20" Efficiency Rule
To make .python-version work smoothly in a team of 2 or 200, follow these guidelines: .python version
If you use pyenv , you can set a local version for your current directory with a single command: pyenv local 3.11.5 Use code with caution.
Python remains the leading programming language in 2026, driven by its dominance in AI, ease of learning, and a robust ecosystem [5.5]. As of April 2026, is the latest stable release, offering a refined balance of language improvements and library updates [5.6]. Core Features & Performance The file should be placed in your project's
python -VV (double "V" for more metadata) 2. Within a Python Script ( .py file)
Which or IDE (like VS Code or PyCharm) you prefer? Example: 3
Here's a brief history of major Python versions:
: Including the file in Git ensures all contributors use the same interpreter version.
