python search for file existance on a dir code example

Example 1: how to check if file exists pyuthon

import os
file_exists = os.path.exists("example.txt") # Returns boolean representing whether or not the file exists

Example 2: check if a file exists

>>> import os
>>> os.path.isfile("d:\\Package1\\package1\\fibo.py")
True
>>> os.path.isfile("d:/Package1/package1/fibo.py")
True
>>> os.path.isfile("d:\\nonexisting.txt")