backslash woes........

[Martin Franklin]

Hi all,


I am having trouble with windows path names (i'm a UNIX'ite)
I want to replace the common prefix of a list of file names
with a relative stub (./) I have this...

    def _removePrefix(self, fullfile):
        print r'%s' %fullfile
        filename=re.sub(r'%s' %self.prefix, r'%s' %os.sep, r'%s' %fullfile)
        print filename
        return filename


Where fullfile is the - full filename...
and self.prefix is the os.commonprefix()


Currently I get an error:-

traceback (most recent call last):
  File "c:\python21\lib\lib-tk\Tkinter.py", line 1285, in __call__
    return apply(self.func, args)
  File "r:\src\python\squeeze\dev\makesqueeze.py", line 161, in Finish
    Squeeze(platFileList, open(filename, 'w'), self.prefix_or_path.get(),
config)
  File "r:\src\python\squeeze\dev\Squeeze.py", line 58, in __init__
    self._apply(file)
  File "r:\src\python\squeeze\dev\Squeeze.py", line 137, in _apply
    file = self._removePrefix(fullfile)
  File "r:\src\python\squeeze\dev\Squeeze.py", line 151, in _removePrefix
    filename=re.sub(r'%s' %self.prefix, r'%s' %os.sep, r'%s' %fullfile)
  File "c:\python21\lib\sre.py", line 63, in sub
    return _compile(pattern, 0).sub(repl, string, count)
  File "c:\python21\lib\sre.py", line 136, in _compile
    raise error, v # invalid expression
error: bogus escape: '\\x'


I don't understand this as I am (trying) to use raw strings everywhere.....
(that's what the DOC's told me to do...)


'Course on UNIX it all works perfectly well with or without the raw strings;-)




Hope _you_ can help

Martin