On Mon, Sep 28, 2015 at 8:43 PM, Steven D'Aprano <steve@pearwood.info> wrote:
(3) Using a regular expression is probably the "right" answer, at least
from a comp sci theorectical perspective. This is precisely the sort of
thing that regexes are designed for. Unfortunately, regex syntax is
itself a programming language[1], and a particularly cryptic and
unforgiving one, so even quite experienced coders can have trouble.

indeed -- we all know the old maxim:

"I had a problem, and thought "I know, I'll use regular expressions" -- now I have two problems.

And the Python "obvious way to do it" has always been for simple string manipulation, see if what you need is in a string method before you bring out the big guns of REs

After all, if "use REs" was the answer to simple string manipulation problems, the string object would have a lot fewer methods.

So: I've frequently had this use-case, too -- it would be a nice enhancement that would had substantial utility to strings. Whether it used an re under the hood or not should be an implementation detail.

-CHB

--

Christopher Barker, Ph.D.
Oceanographer

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