Exception: Cannot find PyQt5 plugin directories when using Pyinstaller despite PyQt5 not even being used

Question

A month ago I solved my applcation freezing issues for Python 2.7 as you can see here. I have since adapted my code to python 3.5 (using Anaconda) and it appears to be worki

Answer 1

This still looks like an issue, which is why I'm resurrecting this old post in the event someone like me googles for a fix to the same issue.

You don't need to uninstall or reinstall anything. I just installed latest version of Anaconda and pyinstaller and have come across the same error again.

The problem is the ../Anaconda3\Lib\site-packages\PyInstaller\utils\hooks\qt.py file.

The solution lies in the following link. https://github.com/pyinstaller/pyinstaller/issues/3938

            json_str = exec_statement("""

            # ... some code here ...

            else:
                # QLibraryInfo isn't always valid until a QCoreApplication is
                # instantiated.
                app = QCoreApplication(sys.argv) # this is the part that's needed

I hope the pyinstaller devs fix this at some stage.