how to write specific error in python code example

Example 1: try except python

try:
  print("I will try to print this line of code")
except:
  print("I will print this line of code if an error is encountered")

Example 2: except as Exception:

>>> def catch():
...     try:
...         asd()
...     except Exception as e:
...         print e.message, e.args
... 
>>> catch()
global name 'asd' is not defined ("global name 'asd' is not defined",)

Example 3: try except python

try:
  print("I will try to print this line of code")
except ERROR_NAME:
  print("I will print this line of code if error ERROR_NAME is encountered")