Have you installed it?Р В РІР‚СњР вЂ™Р’В®rror importing PyQt5. The console in Thonny has this (included as text to help search engines): When I then attempt to run the test file in Thonny, I get the following error: I installed the cs20-easygui package with the -user switch outside a virtual environment, with: The install worked just fine, and when the Python file was executed from within the virtual environment, everything worked as expected. To confirm the problem is specifically with Thonny, I used the same simple Python demo file, copied it into a new folder, then called pipenv install cs20-easygui. If I uninstall as suggested in the comment above, and install them through the shell using pip3 install cs20-easygui, I get the following error:Р В РІР‚СњР вЂ™Р’В®RROR: Could not install packages due to an EnvironmentError: Permission denied: '/Applications/Thonny.app/Contents/Frameworks/amework/Versions/3.7/lib/python3.7/site-packages/sip-5.1.1.dist-info' Consider using the `-user` option or check the permissions. When I install it via the regular pip-gui method (that I show my students), the following error appears: The library that I'm installing is cs20-easygui, which just wraps up easygui_qt with it's prerequisites ( sip, PyQt5). Similar problems installing a library that uses Qt, using Thonny 3.2.7 on Mac OS Catalina 10.15.3.

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