Python验证文件是否可读写代码分享

# Import python libsimport osdef is_writeable(path, check_parent=False): ''' Check if a given path is writeable by the current user. :param path: The path to check :param check_parent: If the path to check does not exist, check for the   ability to write to the parent directory instead :returns: True or False ''' if os.access(path, os.F_OK) and os.access(path, os.W_OK):  # The path exists and is writeable  return True if os.access(path, os.F_OK) and not os.access(path, os.W_OK):  # The path exists and is not writeable  return False # The path does not exists or is not writeable if check_parent is False:  # We're not allowed to check the parent directory of the provided path  return False # Lets get the parent directory of the provided path parent_dir = os.path.dirname(path) if not os.access(parent_dir, os.F_OK):  # Parent directory does not exit  return False # Finally, return if we're allowed to write in the parent directory of the # provided path return os.access(parent_dir, os.W_OK)def is_readable(path): ''' Check if a given path is readable by the current user. :param path: The path to check :returns: True or False ''' if os.access(path, os.F_OK) and os.access(path, os.R_OK):  # The path exists and is readable  return True # The path does not exist return False