strip bug?
>>> 'http://xthunder'.strip('http://')
'xthunder'
>>> 'http://thunder'.strip('http://')
'under'
>>>
I could understand backslash but forward slash?
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Re: strip bug?
On Tue, Feb 24, 2015 at 4:05 PM, wrote:
'http://xthunder'.strip('http://')
> 'xthunder'
'http://thunder'.strip('http://')
> 'under'
This removes all leading and trailing occurrences of the characters in
the string 'http://', not the exact substring 'http://'. For that, use
either the str.replace method or slicing.
> I could understand backslash but forward slash?
I don't understand the question.
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Re: strip bug?
Well, from the docstring of strip:
--
S.strip([chars]) -> string or unicode
Return a copy of the string S with leading and trailing
whitespace removed.
If chars is given and not None, remove characters in chars instead.
If chars is unicode, S will be converted to unicode before stripping
--
In this case 'http://thunder'.strip('http://') is the same as
'http://thunder'.strip('htp:/') and any character of the string that is passed
to the method will be removed.
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Re: strip bug?
On 25-2-2015 0:05, bayk...@gmail.com wrote:
'http://xthunder'.strip('http://')
> 'xthunder'
'http://thunder'.strip('http://')
> 'under'
>
> I could understand backslash but forward slash?
>
>>> help("".strip)
Help on built-in function strip:
strip(...) method of builtins.str instance
S.strip([chars]) -> str
Return a copy of the string S with leading and trailing
whitespace removed.
If chars is given and not None, remove characters in chars instead.
^^
It strips any chars given in the argument, not as a prefix/suffix to remove.
Irmen
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Re: strip bug?
On Tue, Feb 24, 2015 at 3:05 PM, wrote:
> >>> 'http://xthunder'.strip('http://')
> 'xthunder'
> >>> 'http://thunder'.strip('http://')
> 'under'
> >>>
>
> I could understand backslash but forward slash?
I believe the issue is that str.strip does not do quite what you are
thinking it does, however your message is very unspecific about what you
expect to get. It seems that you except str.strip to remove a sub-string,
while it actually removes the list of specified characters (see
https://docs.python.org/3.4/library/stdtypes.html?highlight=str.strip#str.strip).
As such, you would get the same result from 'http://thunder'.strip('htp:/')
and 'http://thunder'.strip('/thp:') as from your samples.
To get what I am guessing you want ("xthunder" for the first and "thunder"
for the second), you should use splicing, likely combined with
str.startswith() (untested code):
url = 'http://thunder/
if url.startswith('http://'):
url = url[7:]
else
# Handle case without the prefix in whatever manner is correct for your
case. Possibly continue, possibly error out.
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Re: strip bug?
On Wednesday, February 25, 2015 at 4:35:37 AM UTC+5:30, bay...@gmail.com wrote:
> >>> 'http://xthunder'.strip('http://')
> 'xthunder'
> >>> 'http://thunder'.strip('http://')
> 'under'
> >>>
>
> I could understand backslash but forward slash?
Others have answered specifically.
However you probably want to look at urlparse
https://docs.python.org/2/library/urlparse.html
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Re: strip bug?
Hello how are you doing please -- https://mail.python.org/mailman/listinfo/python-list
