python check exist 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: how to check if var exists python

# for local
if 'myVar' in locals():
  # myVar exists.
# for globals
if 'myVar' in globals():
  # myVar exists.

Example 3: 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")