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Changes in Fedora {PRODVER} For Developers
Python 3.13
Fedora 41 provides Python 3.13, the latest major release of the Python language. For a list of changes in this release, see the link:++https://docs.python.org/dev/whatsnew/3.13.html#what-s-new-in-python-3-13++[upstream documentation], especially the link:++https://docs.python.org/dev/whatsnew/3.13.html#porting-to-python-3-13++[Porting to Python 3.13] section.
In addition, PythonC is now built with the `-03` compiler flag in Fedora, which aligns with how Python is built upstream, and provides a noticeable performance improvement (for example, 1.04x faster `pyperformance` geometric mean). This only affects the interpreter and standard Python library, not any third party extension modules built as RPMs or on developer systems.
Notes on migrating user-installed pip packages
When you upgrade from Fedora 40 to Fedora 41, the main Python interpreter version changes from 3.12 to 3.13. If you have any Python packages installed using `pip`, you must complete the following procedure to migrate them to the new version:
Install the previously main Python version:
sudo dnf install python3.12
Get `pip` for the previously main Python version:
python3.12 -m ensurepip --user
Observe the installed packages:
python3.12 -m pip list
Save the list with specific versions:
python3.12 -m pip freeze > installed.txt
Install the same packages for the now default version:
python3 -m pip install --user -r installed.txt
Uninstall user-installed packages for 3.12; this ensures proper removal of files in `~/.local/bin`:
python3.12 -m pip uninstall $(python3.12 -m pip list --user | cut -d" " -f1)
Optionally, clean up the now empty directory structure:
rm -rf ~/.local/lib/python3.12/
Optionally, remove the unneeded Python version:
sudo dnf remove python3.12
Additionally, if you have any `pip` packages installed using `sudo`, run the following commands _before running the final step above which removes `python3.12`_, or install it again temporarily:

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sudo dnf install python3.12
sudo dnf install python3.12
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type: delimited block -
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no-wrap, read-only
Source string location
./pages/developers.adoc:20
String age
a month ago
Last updated
a month ago
Source string age
a month ago
Translation file
pot/f41/pages/developers.pot, string 8