I image it's due to your window's system being 32-bit but not sure entirely why it differs in PyInstaller.
What do you get if you run the following normally and from PyInstaller? import sys print(sys.float_info()) And if you replace `a = .999999...` in your code with import sys a = 1 - sys.float_info().epsilon -- You received this message because you are subscribed to the Google Groups "PyInstaller" group. To unsubscribe from this group and stop receiving emails from it, send an email to pyinstaller+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/pyinstaller/7031ba33-3c89-4019-ba8e-26d2fda1c0c7%40googlegroups.com.
