Question

As per the title, I am looking for a Python function similar to Lua’s string.sub, whether it be 3rd party or part of the Python Standard library. I’ve been searching all over the internet ( including stackoverflow ) for nearly an hour and haven’t been able to find anything whatsoever.

Answer 1

Python doesn’t require such a function. It’s slicing syntax supports String.sub functionality (and more) directly:

>>> 'hello'[:2]
'he'
>>> 'hello'[-2:]
'lo'
>>> 'abcdefghijklmnop'[::2]
'acegikmo'
>>> 'abcdefghijklmnop'[1::2]
'bdfhjlnp'
>>> 'Reverse this!'[::-1]
'!siht esreveR'