rstrip()

[News123]

Thomas Jollans wrote:

> 
> 
>> string.rstrip( [ '-dir' ] )
>> or  as
>> string.rstrip( '-dir' )
> 
> The former should certainly raise an exception. '-dir' is not a single
> character !
> Or it should actually strip '-dir', or '-dir-dir', but not 'r--i'... but
> that's just silly.
> 
It's silly with the example of '-dir' it's much less silly with
a string like ' \t'.

The doc is rather clear about it:
str.rstrip([chars])

It is marked 'chars' and not 'suffix'

The textual description is even clearer:
"The chars argument is not a suffix; rather, all combinations of its
values are stripped:"


When  I asked in this grpup about a way of how to strip off a prefix I
never even considered strip as a solution having read the doc before.

I also think, that the functionality of strip / rstrip is useful as is.


It would just be great to have functions to strip  prefixes/suffixes.
If these new commands were alphabetically next to the classic  commands,
( e.g. strip_prefix / rstrip_suffix)  then almost everybody looking for
string functions would probably use the function, which is appropriate
for his purpose.

Breaking backwardscompatibility within python 3 might not be the best
choice.

>> However I wouldn't be sure, that it really reduces the amount of
>> questions being asked.
>>
>> In order to reduce the ambiguities one had to have two distinct functions.
>> If one wouldn't want to break backwards-compatibility, then the new
>> names would be  for stripping off prefixes / suffixes and could be
>> str.strip_prefix(prefixes) / str.rstrip_suffix(suffixes)
>>
>>
>> I'd love to have this functionality, though I can live with importing my
>> self written function.
>