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...is already built into the string class. It is called rjust. So replace all uses of your over-engineered function with str.rjust(longest), or change the function to use rjust.

...is already built into the string class. It is called rjust. So replace all uses of your over-engineered function with str.rjust(longest), or change the function to use rjust.

The recommended way of doing it is by using the is operator (if you want to be explicit), or not operator if you are trying to be subtle, so:

if given is None: # or if not given:
    ...

The recommended way of doing it is by using the is operator, so:

if given is None:
    ...

The recommended way of doing it is by using the is operator, so:

if given is None:
    ...

The recommended way of doing it is by using the is operator (if you want to be explicit), or not operator if you are trying to be subtle, so:

if given is None: # or if not given:
    ...