os.path.isdir do not work for Foder named '2011-07-03'

Steven D'Aprano steve+comp.lang.python at pearwood.info
Tue Jul 19 09:26:59 CEST 2011

Thomas Jollans wrote:

> On 19/07/11 06:42, Steven D'Aprano wrote:

>> (1) Escape every backslash with an extra backslash:
>>>>> print "logs\\2011-07-03"
>> logs\2011-07-03
> There is a more elegant solution: use raw strings: r'c:\foo\bar'

Well, perhaps, but not all paths can be written as a raw string:

>>> path = r'a\b\c\'
  File "<stdin>", line 1
    path = r'a\b\c\'
SyntaxError: EOL while scanning single-quoted string

>> (2) Use forward slashes, as Windows will happily accept them instead of
>> backslashes.
> The "correct" solution in many cases is to not assume any particular
> path separator at all, and use os.path.join when dealing with paths.
> This will work even on systems that do not accept forward slashes as
> path separators. (does Python still support any of those?)

Yes, but only just. Python still includes support for VMS, at least for now;
support is scheduled to be dropped in 3.3 and code supporting it to be
removed in 3.4.


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