[Python-Dev] Re: PEP 616 -- String methods to remove prefixes and suffixes

Hello,

On Tue, 24 Mar 2020 22:51:55 +0100 Victor Stinner vstinner@python.org wrote:

...

=== config.something === # If you'd like to remove some prefix from your lines, set it here REMOVE_PREFIX = "" ======

=== src.py === ... line = line.cutprefix(config.REMOVE_PREFIX) ... ======

Just use:

if config.REMOVE_PREFIX: line = line.cutprefix(config.REMOVE_PREFIX)

Or even just:

if line.startswith(config.REMOVE_PREFIX): line = line[len(config.REMOVE_PREFIX):]

But the point taken - indeed, any confusing, inconsistent behavior can be fixed on users' side with more if's, once they discover it.