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Provides relaxing grammar restrictions by allowing decorators to be any valid expression.
Support for the IANA time zone database in the `zoneinfo` module.
`removeprefix` and `removesuffix` string methods will remove prefixes and suffixes from a string.
CPython now uses a new parser based on parsing expression grammar (PEG).
Notes on migrating user-installed pip packages
When you upgrade Fedora from versions 32 to Fedora 33, the main Python interpreter version changes from 3.8 to 3.9. If you have any Python packages installed using `pip`, you must complete the following procedure to migrate them to the new version:
Install previous version of `python3` package:
sudo dnf install python3.8
Get `pip` for the previous Python version:
python3.8 -m ensurepip --user
Observe the installed packages:
python3.8 -m pip list
Save the list with specific versions:
python3.8 -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 Python 3.8; this ensures proper removal of files in `~/.local/bin`:
python3.8 -m pip uninstall $(python3.8 -m pip list --user | cut -d" " -f1)
Optionally, clean up the now empty directory structure:
rm -rf ~/.local/lib/python3.8/
Optionally, remove the unneeded Python version:
sudo dnf remove python3.8
Additionally, if you have any `pip` packages installed using `sudo`, run the following commands _before running the final step above which removes `python3.8`_, or install it again temporarily:
Get `pip` for the previous Python version for `root` user:
sudo python3.8 -m ensurepip
Observe the system-installed packages:
sudo python3.8 -m pip list
Uninstall installed packages for 3.8; this ensures proper removal of files in `/usr/local/bin`:
sudo python3.8 -m pip uninstall $(python3.8 -m pip list | cut -d" " -f1)
Optionally, clean up now empty directory structure:
sudo rm -rf /usr/local/lib*/python3.8/

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python3 -m pip install --user -r installed.txt
python3 -m pip install --user -r installed.txt
2 years ago
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Source string description
type: delimited block -
Flags
no-wrap, read-only
Source string location
./pages/developers/Development_Python.adoc:55
String age
2 years ago
Last updated
a year ago
Source string age
2 years ago
Translation file
pot/f33/pages/developers/Development_Python.pot, string 23