Pyenv Concepts: Difference between revisions
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<code>brew</code> also lets you install different Python versions on the same system: {{Internal|Python_Versions#Python_Version_Management_with_Brew|Python Versions | Python Version Management with Brew}} | <code>brew</code> also lets you install different Python versions on the same system: {{Internal|Python_Versions#Python_Version_Management_with_Brew|Python Versions | Python Version Management with Brew}} | ||
<font color=darkkhaki>TO PROCESS: https://stackoverflow.com/a/30580166</font> | <font color=darkkhaki>TO PROCESS: https://stackoverflow.com/a/30580166</font> | ||
=What Happens if pyenv Installs a new Python Version= | |||
Revision as of 00:47, 3 November 2023
Internal
Overview
pyenv is a tool that let you switch between multiple version of Python.
pyenv lets you change the global Python version on a per-user basis. It also provides support for per-project Python versions. It allows you to override the Python version with an environment variables.
pyenv works by intercepting Python commands using shim executables injected in PATH, determines which Python version has been specified by your application and passes the command along to the correct Python installation.
Version Selection
The intercepting pyenv shim determines what Python version is needed by looking at the following sources, in this order:
PYENV_VERSION- The application-specific
.python-versionin the current directory. - The first
.python-versionfile found by searching each parent directory up to the filesystem root. - The global
$(pyenv root)/versionfile.
pyenv and brew
brew also lets you install different Python versions on the same system:
TO PROCESS: https://stackoverflow.com/a/30580166