Python验证文件是否可读写 Python验证文件是否可读写代码分享
张宋付 人气:0想了解Python验证文件是否可读写代码讲解的相关内容吗,张宋付在本文为您仔细讲解Python验证文件是否可读写的相关知识和一些Code实例,欢迎阅读和指正,我们先划重点:python,文件可读写,python,文件是否为空,python,是否是文件,下面大家一起来学习吧。
本文分享实例代码主要在实现验证文件是否有读写权限问题,具体如下:
# Import python libs import os def 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
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