In `/venv/lib/python3.6/site-packages/PyInstaller/hooks/hook-_tkinter.py` Change line 183 to `if 'Library/Frameworks' in path_to_tcl and 'Python' not in path_to_tcl:` Or the installer will fail on MacOS See https://github.com/pyinstaller/pyinstaller/issues/3753#issuecomment-619582208