raspberry pi python 3 update and upgrading error cant update anything

imtrying to update my raspberry pi 3b but i get this error.i can not update anythingt because of this error.

File "usr/bin/pip3", line 5, in from pkg_resouces import load_entry_point File"usr/local/lib/python3.4/dist-packages/pkg_recourses/init.py", line 117 f"{v} is an invalid version and will not be supported in " ^

SyntaxError: invalid syntax

source https://stackoverflow.com/questions/70816775/raspberry-pi-python-3-update-and-upgrading-error-cant-update-anything

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