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README: explain using multiple versions (#3126)

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Co-authored-by: native-api <vano@mail.mipt.ru>
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Oluf Lorenzen 2024-12-12 04:58:02 +01:00 committed by GitHub
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@ -51,6 +51,7 @@ This project was forked from [rbenv](https://github.com/rbenv/rbenv) and
* [Install additional Python versions](#install-additional-python-versions)
* [Prefix auto-resolution to the latest version](#prefix-auto-resolution-to-the-latest-version)
* [Switch between Python versions](#switch-between-python-versions)
* [Making multiple versions available](#making-multiple-versions-available)
* [Uninstall Python versions](#uninstall-python-versions)
* [Other operations](#other-operations)
* [Upgrading](#upgrading)
@ -389,6 +390,21 @@ for more details on how the selection works and more information on its usage.
----
#### Making multiple versions available
You can select multiple Python versions at the same time by specifying multiple arguments.
E.g. if you wish to use the latest installed CPython 3.11 and 3.12:
~~~bash
pyenv global 3.11 3.12
~~~
Whenever you run a command provided by a Python installation, these versions will be searched for it in the specified order.
Versions selected with `pyenv shell` are searched first, then `pyenv local`, then `pyenv global`.
[Due to the shims' fall-through behavior]((#understanding-python-version-selection)), `system` is always implicitly searched afterwards.
----
### Uninstall Python versions
As time goes on, you will accumulate Python versions in your