what's wrong with hasattr(obj, '__call__')? Antoon Pardon wrote: > I have been reading http://www.python.org/dev/peps/pep-3100/ > en there is written: > > To be removed: > ... > > callable(): just call the object and catch the exception > > ... > > But that doesn't seem to be a generally available option. > The place where you want to check if something is callable > doens't need to be the place where you actually want to call > it. Removing callable will mean that you can't check whether > or not something is callable without incurring the side-effects > of calling it. > > I also think code will become more ugly > > How do you suggest I would code the following: > > if callable(func): > for i, el in lst: > lst[i] = func(el) > othercode() > > > I can code as follows: > > try: > for i, el in lst: > lst[i] = func(el) > othercode() > except TypeError: > pass > > > But this has the problem that othercode could throw a TypeError: > > So it seems I would need at least two try statements > > try: > for i, el in lst: > try: > lst[i] = func(el) > except TypeError > raise LoopBreak > othercode() > except LoopBreak: > pass > > And this still has problems because the TypeError could be > raised because lst is an unsubscriptable object. > > > Is there a chance this will be reconsidered? > > -- > Antoon Pardon
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