Steve Holden wrote: > Well that's a healthy attitude, but I am concerned that the Python > community should be as welcoming as possible, so I don't like the fact > that you feel you are being treated differently from anyone else.
I certainly appreciate that. And I will try my best to refrain from the little personal zingers (and the big ones too). > > All you really need to test the pre-conditions of a function > > is a call at the top of the function to another function that checks > > the inputs. To test the > > post-conditions, you just need a call at the bottom of the function, > > just before the return, > > that checks the return values. Those functions can also check the > > invariants. Then you > > define a global variable to switch all the self-test functions on or > > off at once. > > > It does constrain functions to return only from the bottom of their > code, though, which not all Python functions currently do. Though > there's nothing to stop you putting the calls before every return. Oops! I didn't think of that. The idea of putting one before every return certainly doesn't appeal to me. So much for that idea. -- http://mail.python.org/mailman/listinfo/python-list
