[Python-ideas] Deprecate str.find

[Georg Brandl]

Am 15.07.2011 18:31, schrieb Antoine Pitrou:
> On Fri, 15 Jul 2011 12:12:33 -0400
> Mike Graham <mikegraham at gmail.com> wrote:
>> [...]
>> Now. we can dredge up some examples where -1 is the actual value
>> someone wants to use. These cases are so rare and so subtle as to make
>> their use so clever I don't really see their existence as an
>> advantage.
>> 
>> Additionally, it is unfortunate that we currently have two methods to
>> do the same thing (which isn't even a super-common task) with
>> different APIs. Nothing about the names "find" and "index" really
>> makes clear which is which. This violates the "There should be one--
>> and preferably only one --obvious way to do it." principle and makes
>> the Python user need to memorize an unnecessary, arbitrary
>> distinction.
> 
> While this would be a very good argument to make if we were currently
> designing the str API, I don't think the benefits of suppressing
> str.find outweight the burden of converting old code to use a different
> idiom.
> 
> We could choose to write something about it in the documentation,
> though.

Patches are welcome at bugs.python.org ;)

Georg