Re: removing extension
On Apr 27, 5:34 pm, wilson [EMAIL PROTECTED] wrote:
i was trying to convert all images in a folder to another type and
save the new images in a separate folder.for that i wrote a class and
coded some part
class ConvertImgs:
def __init__(self,infldr,outfldr):
if os.path.isdir(infldr):
self.infldr=infldr
self.outfldr=outfldr
else:
print no such folder,exits program
exit(1)
if not os.path.isdir(self.outfldr):
os.mkdir(self.outfldr)
print made:,self.outfldr
for x in os.listdir(infldr):
self.origlist=[os.path.normpath(os.path.join(self.infldr,x)) for x in
os.listdir(infldr)]
...
the self.origlist returns a list of filenames in infolder.I would
like to get them as 'C:\\myimages\\imageone' instead of 'C:\\myimages\
\imageone.jpg' sothat i can add a diff extension to all those strings
in the list and save in diff format(ie change 'C:\\myimages\\imageone'
to 'C:\\myimages\\imageone.gif ' and save in gif format).but i don't
know how to remove those extension from the namestring ..can someone
help?
W
I don't know if this is the simplest way, but you can use re module.
import re
pat = re.compile(r'(.*?)\..*')
name = pat.search('C:\\myimages\\imageone.jpg').group(1)
print name
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Re: removing extension
On Apr 27, 6:05 pm, Lie [EMAIL PROTECTED] wrote:
On Apr 27, 5:34 pm, wilson [EMAIL PROTECTED] wrote:
i was trying to convert all images in a folder to another type and
save the new images in a separate folder.for that i wrote a class and
coded some part
class ConvertImgs:
def __init__(self,infldr,outfldr):
if os.path.isdir(infldr):
self.infldr=infldr
self.outfldr=outfldr
else:
print no such folder,exits program
exit(1)
if not os.path.isdir(self.outfldr):
os.mkdir(self.outfldr)
print made:,self.outfldr
for x in os.listdir(infldr):
self.origlist=[os.path.normpath(os.path.join(self.infldr,x)) for x in
os.listdir(infldr)]
...
the self.origlist returns a list of filenames in infolder.I would
like to get them as 'C:\\myimages\\imageone' instead of 'C:\\myimages\
\imageone.jpg' sothat i can add a diff extension to all those strings
in the list and save in diff format(ie change 'C:\\myimages\\imageone'
to 'C:\\myimages\\imageone.gif ' and save in gif format).but i don't
know how to remove those extension from the namestring ..can someone
help?
W
I don't know if this is the simplest way, but you can use re module.
import re
pat = re.compile(r'(.*?)\..*')
Sorry, this line should be:
pat = re.compile(r'(.*)\..*')
or paths like these wouldn't pass correctly:
C:\\blahblah.blah\\images.20.jpg
name = pat.search('C:\\myimages\\imageone.jpg').group(1)
print name
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Re: removing extension
Lie [EMAIL PROTECTED] writes:
On Apr 27, 6:05 pm, Lie [EMAIL PROTECTED] wrote:
I don't know if this is the simplest way, but you can use re module.
import re
pat = re.compile(r'(.*?)\..*')
Sorry, this line should be:
pat = re.compile(r'(.*)\..*')
or paths like these wouldn't pass correctly:
C:\\blahblah.blah\\images.20.jpg
name = pat.search('C:\\myimages\\imageone.jpg').group(1)
print name
More simply, use the rsplit() method of strings:
path = r'C:\myimages\imageone.jpg'
path.rsplit('.', 1)
['C:\\myimages\\imageone', 'jpg']
path = rC:\blahblah.blah\images.20.jpg
path.rsplit('.', 1)
['C:\\blahblah.blah\\images.20', 'jpg']
HTH
--
Arnaud
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Re: removing extension
Arnaud Delobelle wrote:
More simply, use the rsplit() method of strings:
path = r'C:\myimages\imageone.jpg'
path.rsplit('.', 1)
['C:\\myimages\\imageone', 'jpg']
path = rC:\blahblah.blah\images.20.jpg
path.rsplit('.', 1)
['C:\\blahblah.blah\\images.20', 'jpg']
HTH
There's os.path.splitext(), which probably does just about exactly that.
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Re: removing extension
On Sun, 27 Apr 2008 15:06:54 +, Matt Nordhoff wrote:
Arnaud Delobelle wrote:
More simply, use the rsplit() method of strings:
path = r'C:\myimages\imageone.jpg'
path.rsplit('.', 1)
['C:\\myimages\\imageone', 'jpg']
path = rC:\blahblah.blah\images.20.jpg
path.rsplit('.', 1)
['C:\\blahblah.blah\\images.20', 'jpg']
HTH
There's os.path.splitext(), which probably does just about exactly that.
Not exactly. In the case of no extension `os.path.splitext()` still works:
In [14]: 'foo/bar.txt'.rsplit('.')
Out[14]: ['foo/bar', 'txt']
In [15]: 'foo/bar'.rsplit('.')
Out[15]: ['foo/bar']
In [16]: os.path.splitext('foo/bar')
Out[16]: ('foo/bar', '')
Ciao,
Marc 'BlackJack' Rintsch
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Re: removing extension
Marc 'BlackJack' Rintsch [EMAIL PROTECTED] writes:
Not exactly. In the case of no extension `os.path.splitext()` still works:
In [14]: 'foo/bar.txt'.rsplit('.')
Out[14]: ['foo/bar', 'txt']
In [15]: 'foo/bar'.rsplit('.')
Out[15]: ['foo/bar']
In [16]: os.path.splitext('foo/bar')
Out[16]: ('foo/bar', '')
And crucially, it still works correctly if the file has no
extension but a directory in the path has one:
'foo.baz/bar'.rsplit('.')
['foo', 'baz/bar']
os.path.splitext('foo.baz/bar')
('foo.baz/bar', '')
Conclusion: forget about str.rsplit() (which I suggested), use
os.path.splitext() instead :)
--
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