ntpath.py 文件源码

def splitunc(p):
    """Deprecated since Python 3.1.  Please use splitdrive() instead;
    it now handles UNC paths.

    Split a pathname into UNC mount point and relative path specifiers.

    Return a 2-tuple (unc, rest); either part may be empty.
    If unc is not empty, it has the form '//host/mount' (or similar
    using backslashes).  unc+rest is always the input path.
    Paths containing drive letters never have a UNC part.
    """
    import warnings
    warnings.warn("ntpath.splitunc is deprecated, use ntpath.splitdrive instead",
                  DeprecationWarning, 2)
    drive, path = splitdrive(p)
    if len(drive) == 2:
         # Drive letter present
        return p[:0], p
    return drive, path


# Split a path in head (everything up to the last '/') and tail (the
# rest).  After the trailing '/' is stripped, the invariant
# join(head, tail) == p holds.
# The resulting head won't end in '/' unless it is the root.