One more note: Python is ruthlessly obedient. If you just spent 20 hours running a program and you save the file as temp_data.txt. Then later you run something and save it as temp_data.txt - done.

For instance, to launch the 64-bit edition of Python 3.9, you would type py -3.9-64. Note that if you provide only a version number, ... In the above example, ...