How to run it on Mac and Windows

For Mac Platform
1-) Download below link version Python 3.9.1
    https://www.python.org/downloads/mac-osx/
2-) Run IDLE Python 3.9
3-) File -> Open -> main.py
Important note: main.py and canvas.py files are in the same folder.
4-)Run Module F5
5-) GUI will be open.
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For Windows platform
1-) Download below link version Python 3.9.1
    https://www.python.org/downloads/windows/
2-) Run IDLE Python 3.9
3-) File -> Open -> main.py
Important note: main.py and canvas.py files are in the same folder.
4-)Run Module F5 
5-) GUI will be open.