Error when i try to decompile a .pyc file

[Hamsanand13]

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[gitchobo622]

I installed decompyle3
by pip install decompyle3

when I try
decompyle3 run.py

it says Unkonw magic number 3495 in run.pyc.

So I tried install xdis=6.1.0 since error appeared when I try to do "pip install ." and says

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
decompyle3 3.9.0 requires xdis<6.1.0,>=6.0.4, but you have xdis 6.1.0.dev0 which is incompatible.
Successfully installed xdis-6.1.0.dev0

It is automatically install 6.1.0.dev0 , if I fix 6.1.0 version manually, it is not working,
and when I get back to try decompyle3 run.pyc,
it is not working as well..

I need something to decompyle. can you help me out?