rstrip()

[News123]

Jason Friedman wrote:
> $ python
> Python 2.6.4 (r264:75706, Dec  7 2009, 18:43:55)
> [GCC 4.4.1] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> "x.vsd-dir".rstrip("-dir")
> 'x.vs'
> 
> I expected 'x.vsd' as a return value.

This is kind of similiar to the question, that I posted recently.
"nicer way to remove prefix of a string if it exists"



if you want to remove '-dir' at the end of the string if it exists and
leave the string as it is if it is not followed by '-dir',

then you could do:

def rmv_suffix(suffix,txt):
    if txt.endswith(suffix):
        return txt[:-len(suffix)]
    return txt

>>> rmv_suffix('-dir','abcd')
'abcd'
>>> rmv_suffix('-dir','abcd-dir')
'abcd'
>>> rmv_suffix('-dir','abcd-dir-and then more')
'abcd-dir-and then more'
>>>


the other solution would involve regular expressions:


import re
>>> re.sub('-dir$','','abcd')
'abcd'
>>> re.sub('-dir$','','abcd-dir')
'abcd'
>>> re.sub('-dir$','','abcd-dirand more')
'abcd-dirand more'
>>>