for loop try except python code example

Example 1: try catch python

try:
  print("try to run this block")
except:
  print("run this bock if there was error in earlier block")

Example 2: try for loop python

try:   
    with open('sample.txt','r') as file:
        for line in file:
            (some action here)
except IOError:
    except IOError as (errno, strerror):
        print "I/O error({0}): {1}".format(errno, strerror)