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：
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# 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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总结
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原文链接：http://outofmemory.cn/code-snippet/83368/python-yanzheng-file-if-kedu-ke-write