I cannot open any .py file: when I run in the command prompt either "python test.py" or "python3 test.py" or "py test.py", it just says can't open file 'C:\Users\Ciela\Desktop\test.py': [Errno 2] No such file or directory. Python is installed, latest version All other versions are uninstalled Python was automatically added to PATH during installation, I can see it in both User and System paths and the version is correct the files can be opened in Python just by double-clicking them, although they shut off immediately (I know they work because the "turtle module" screen persists on the screen) The OS is Windows 10 and I am a total noob trying to learn What could it be?? Continue reading...