diff options
Diffstat (limited to 'Lib/ntpath.py')
| -rw-r--r-- | Lib/ntpath.py | 112 |
1 files changed, 63 insertions, 49 deletions
diff --git a/Lib/ntpath.py b/Lib/ntpath.py index 527c7ae..58483a0 100644 --- a/Lib/ntpath.py +++ b/Lib/ntpath.py @@ -70,7 +70,7 @@ def isabs(s): if s.replace('/', '\\').startswith('\\\\?\\'): return True s = splitdrive(s)[1] - return len(s) > 0 and s[0] in _get_bothseps(s) + return len(s) > 0 and s[0] and s[0] in _get_bothseps(s) # Join two (or more) paths. @@ -268,11 +268,13 @@ def ismount(path): root, rest = splitdrive(path) if root and root[0] in seps: return (not rest) or (rest in seps) - if rest in seps: + if rest and rest in seps: return True if _getvolumepathname: - return path.rstrip(seps) == _getvolumepathname(path).rstrip(seps) + x = path.rstrip(seps) + y =_getvolumepathname(path).rstrip(seps) + return x.casefold() == y.casefold() else: return False @@ -459,56 +461,68 @@ def expandvars(path): # Normalize a path, e.g. A//B, A/./B and A/foo/../B all become A\B. # Previously, this function also truncated pathnames to 8+3 format, # but as this module is called "ntpath", that's obviously wrong! +try: + from nt import _path_normpath -def normpath(path): - """Normalize path, eliminating double slashes, etc.""" - path = os.fspath(path) - if isinstance(path, bytes): - sep = b'\\' - altsep = b'/' - curdir = b'.' - pardir = b'..' - special_prefixes = (b'\\\\.\\', b'\\\\?\\') - else: - sep = '\\' - altsep = '/' - curdir = '.' - pardir = '..' - special_prefixes = ('\\\\.\\', '\\\\?\\') - if path.startswith(special_prefixes): - # in the case of paths with these prefixes: - # \\.\ -> device names - # \\?\ -> literal paths - # do not do any normalization, but return the path - # unchanged apart from the call to os.fspath() - return path - path = path.replace(altsep, sep) - prefix, path = splitdrive(path) - - # collapse initial backslashes - if path.startswith(sep): - prefix += sep - path = path.lstrip(sep) - - comps = path.split(sep) - i = 0 - while i < len(comps): - if not comps[i] or comps[i] == curdir: - del comps[i] - elif comps[i] == pardir: - if i > 0 and comps[i-1] != pardir: - del comps[i-1:i+1] - i -= 1 - elif i == 0 and prefix.endswith(sep): +except ImportError: + def normpath(path): + """Normalize path, eliminating double slashes, etc.""" + path = os.fspath(path) + if isinstance(path, bytes): + sep = b'\\' + altsep = b'/' + curdir = b'.' + pardir = b'..' + special_prefixes = (b'\\\\.\\', b'\\\\?\\') + else: + sep = '\\' + altsep = '/' + curdir = '.' + pardir = '..' + special_prefixes = ('\\\\.\\', '\\\\?\\') + if path.startswith(special_prefixes): + # in the case of paths with these prefixes: + # \\.\ -> device names + # \\?\ -> literal paths + # do not do any normalization, but return the path + # unchanged apart from the call to os.fspath() + return path + path = path.replace(altsep, sep) + prefix, path = splitdrive(path) + + # collapse initial backslashes + if path.startswith(sep): + prefix += sep + path = path.lstrip(sep) + + comps = path.split(sep) + i = 0 + while i < len(comps): + if not comps[i] or comps[i] == curdir: del comps[i] + elif comps[i] == pardir: + if i > 0 and comps[i-1] != pardir: + del comps[i-1:i+1] + i -= 1 + elif i == 0 and prefix.endswith(sep): + del comps[i] + else: + i += 1 else: i += 1 - else: - i += 1 - # If the path is now empty, substitute '.' - if not prefix and not comps: - comps.append(curdir) - return prefix + sep.join(comps) + # If the path is now empty, substitute '.' + if not prefix and not comps: + comps.append(curdir) + return prefix + sep.join(comps) + +else: + def normpath(path): + """Normalize path, eliminating double slashes, etc.""" + path = os.fspath(path) + if isinstance(path, bytes): + return os.fsencode(_path_normpath(os.fsdecode(path))) or b"." + return _path_normpath(path) or "." + def _abspath_fallback(path): """Return the absolute version of a path as a fallback function in case |