Python verifies that the file is read write Shared

  • 2020-06-15 09:37:20
  • OfStack

The example code Shared in this paper is mainly used to verify whether the file has read and write permissions, specifically as follows:


# 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

conclusion

That's all this article has to say about the Python verification file being read-write code. Those who are interested can continue to see this site:

The Python file operates on basic process code instances

The Python implementation reads the txt file and draws a simple code example of a 3d diagram

If there is any deficiency, please let me know. Thank you for your support!


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