pwd.py 文件源码

def __unixpathconv(path):
    # two known drive letter variations: "x;" and "$x"
    if path[0] == '$':
        conv = path[1] + ':' + path[2:]
    elif path[1] == ';':
        conv = path[0] + ':' + path[2:]
    else:
        conv = path
    return conv.replace(os.altsep, os.sep)

# decide what field separator we can try to use - Unix standard, with
# the platform's path separator as an option.  No special field conversion
# handler is required when using the platform's path separator as field
# separator, but are required for the home directory and shell fields when
# using the standard Unix (":") field separator.