python raise typeerror

1# You can raise a error in python by using the raise keyword
2raise Exception("A error occured!")

1except Exception as e: print(e)

1# Raise is used to cause an error
2raise(Exception("Put whatever you want here!"))
3raise(TypeError)

1>>> def catch():
2...     try:
3...         asd()
4...     except Exception as e:
5...         print e.message, e.args
6... 
7>>> catch()
8global name 'asd' is not defined ("global name 'asd' is not defined",)

1def prefill(n,v):
2    try:
3        n = int(n)
4    except ValueError:
5        raise TypeError("{0} is invalid".format(n))
6    else:
7        return [v] * n

1	# this raises a "NameError"
2
3>>> raise NameError('HiThere')
4
5Traceback (most recent call last):
6  File "<stdin>", line 1, in <module>
7NameError: HiThere