2.2 features

[Guido van Rossum]

"Nick Perkins" <nperkins7 at home.com> writes:

> Here's a nice little use of type/class unification:
> 
> instead of using:
> if type(x) is type(0):
> 
> we can use:
> if type(x) is int:
> 
> or, for type checking..
> 
> assert type(num) is int
> assert type(msg) is str
> 
> ( I assume the use of 'is', rather than '==',  is acceptable here )

Yes, 'is' is right.  But you should never use this; instead, you
should use

  assert isinstance(num, int)
  assert isinstance(msg, str)

--Guido van Rossum (home page: http://www.python.org/~guido/)