How To Fix: Pyinstaller In Msys2 Mingw 'your Platform Is Not Yet Supported'

I'm trying to package my GTK3+ Python 3 script using PyInstaller on Windows 10. GTK3+ and the Python bindings are installed and working, using MSYS2 MinGW as per the GTK+ instructi

Solution 1:

You can download setuptools from PyPI and install manually with python setup.py install. Then repeat what you have done.

Solution 2:

With PyInstaller 3.6, you should no longer be getting the Your platform is not supported errors when trying to pip install it in MSYS2.