1
Unlike the Windows Command Prompt where the up arrow key retrieves previous commands by default, Python's IDLE does not have this enabled out of the box.
2
To enable the up arrow for command history in IDLE, go to Options > Configure IDLE, select the Keys tab, search for 'history previous', and bind it to the up arrow key.
3
The standard Windows 'CLS' command to clear the screen does not work natively in the Python IDLE shell; the typical workaround is to close and reopen IDLE.
4
Screen scrolling effects seen in tutorial videos are often the result of video editing rather than built-in IDLE features.