Fredrik Lundh wrote: > Sybren Stuvel wrote: > >> Ant enlightened us with: >>> try: >>> assertion = callable.is_assertion >>> except: >>> pass >> >> Try to make a habit out of catching only the exceptions you know will >> be thrown. Catching everything generally is a bad idea. In this case, >> my bet is that catching AttributeError is enough. > > and > > assertion = hasattr(callable, "is_assertion") > > is even nicer (and can be done as part of the if-statement after the call, > in- stead of in a separate try/except before the call)
You would normally expect that you can turn off a flag by setting it to False instead of deleting it -- which is also how the OP's code works. So I would prefer assertion = getattr(callable, "is_assertion", False) if you forgo the explicit try...except. Peter -- http://mail.python.org/mailman/listinfo/python-list
