.python Version ((better)) 【2026 Update】

To use this file effectively, you should first install a version manager.

: Navigate to your project folder and run pyenv local 3.12.0 . This automatically generates the .python-version file for you. Best Practices for Teams .python version

: If a directory doesn't have the file, the tool searches "up" the folder tree until it finds one or falls back to a global default. Setting Up Your Environment To use this file effectively, you should first

When you enter a directory in your terminal, the version manager checks for this hidden file. Best Practices for Teams : If a directory

: If the file exists, the manager immediately sets the local environment to the version specified inside.

: Follow the installation guide on the pyenv GitHub repository.

: The file contains a single string of text, such as 3.11.4 .