How to make a cross platform python app with pyinstaller??

[Souvik Dutta]

Hi,
I made a python gui with pyqt5 and packed it with pyinstaller. It is
running well in my computer but when I gave it to a friend who doesn't have
any python version installed and it didn't run. The message was "This app
cannot be run on your pc.". How can I solve this???
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