python with file catch error code example

Example 1: python file open try except error

def FileCheck(fn):
    try:
      open(fn, "r")
      return 1
    except IOError:
      print "Error: File does not appear to exist."
      return 0

result = FileCheck("testfile")
print result

Example 2: try except python

def sum_of(x, y):
  try:
    print(x + y)
  except TypeError:
    print("Invalid argument specified.")