All of this would be well served by a 3rd party library on PyPI.  Strings already have plenty of methods (probably too many).  Having `stringtools` would be nice to import a bunch of simple functions from.

On Mon, Mar 25, 2019 at 10:45 AM Alex Grigoryev <evrial@gmail.com> wrote:
strip_prefix and strip_suffix I think are the best names from all and work perfectly with auto completion. Common use case:
"      mailto:maria@gmail.com".strip().strip_prefix("mailto:")

On Mar 25 2019, at 4:40 pm, Anders Hovmöller <boxed@killingar.net> wrote:

Earlier, Anders wrote:
I propose naming them strip_prefix() and strip_suffix() and just skip the one that does both sides since it makes no sense to me.

This is good, except I prefer subtract_prefix(a, b), truncate_suffix etc. And for the two step process prefix_subtractor(a)(b) etc.

I don't understand the logic for "subtract". That's not a thing for non-numbers.

If you don't think "strip" is good, then I suggest "remove". Or one could also consider "without" since we're talking about something that removes /if present/ (making subtract even worse! Subtract doesn't stop at zero). So "without_prefix()".
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