return an error python code example

Example 1: 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 2: python check for exception

try: # put here the code that you expect to error 
  # code
except ValueError: # if you want to catch a ValueError
  # NOTE: you CANNOT catch a syntax error 
  # (UNLESS you are trying to execute code from a string with eval())
  
  # code if python caught the exception
except NameError: # you can catch multiple types of errors!
  # TIP: you can leave the error type blank to make python catch all types of errors!
  
  # code if another exception is caught (this is pretty much a modified if statement)
else: # if no error has been caught do the following:
  
  # code if no exception has been caught