Christian Heimes wrote:
Gregory Ewing wrote:
ntpath.join('d:\\foo', '\\bar')
'\\bar'
This does seem like a bug, though -- the correct result
should really be 'd:\\bar', since that's what you would
get if you used the name '\\bar' with 'd:' as your current
drive.
No, it's not a bug. Since \bar is an absolute path, all path segments
before the absolute path are ignored. This is documented at
http://docs.python.org/library/os.path.html#os.path.join
Given that it's documented to work that way, I'll agree that this is not
a bug -- however, that doesn't mean it's /right/.
From the documentation:
Join one or more path components *intelligently*.
To me, that means taking into account the bizarre in the MS world of
multiple roots on a system... I know I have looked at os.path.join a
couple times also, and found the documented behavior to be completely
unsatisfactory. In the MS world a drive letter specifier should trump a
mere backslash, not be trumped by it.
Are there real world situations where the reverse is desired?
ntpath.isabs("\\bar")
True
ntpath.join("ignored", "\\bar")
'\\bar'
Posixpath follows the same rules, too.
posixpath.join("..", "egg", "/var")
'/var'
posixpath.join("..", "egg", "var")
'../egg/var'
Posix has the luxury of running on sane systems with only one root.
~Ethan~
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