OS module in Python provides functions for interacting with the operating system. OS, comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality.
os.access() method uses the real uid/gid to test for access to path. Most operations uses the effective uid/gid, therefore, this routine can be used in a suid/sgid environment to test if the invoking user has the specified access to path.
path: path to be tested for access or existence
mode: Should be F_OK to test the existence of path, or can be the inclusive OR of one or more of R_OK, W_OK, and X_OK to test permissions.
Following values can be passed as the mode parameter of access() to test the following:
Returns: True if access is allowed, else returns False.
Code #1: Understand access() method
Exists the path: True Access to read the file: True Access to write the file: False Check if path can be executed: False
Code #2: Code to open a file after validating access is allowed
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