Class method should have 'cls' as first argument
Final newline missing
No exception type(s) specified
More than one statement on a single line
No value passed for parameter 'n' in function call

This still appears to be a default value, but docs are not clear.
Unused argument 'value'
Invalid variable name "MAX_ROWS", "MAX_COLS"
Missing function docstring
Bad indentation.
Invalid variable name "STOP_SCROLLING_ON"
Unused import 'traceback', '_lazy'