Le lundi 7 Février 2005 22:53, Steven Bethard a écrit : > Francis Girard wrote: > > I see. I personnaly use them frequently to bind an argument of a function > > with some fixed value. Modifying one of the example in > > http://mail.python.org/pipermail/python-list/2004-December/257990.html > > I frequently have something like : > > > > SimpleXMLRPCServer.py: server.register_1arg-place_function(lambda x: > > x+2, 'add2') > > PEP 309 has already been accepted, so I assume it will appear in Python > 2.5: > > http://www.python.org/peps/pep-0309.html > > Your code could be written as: > > server.register_1arg-place_function(partial(operator.add, 2)) > > If your task is actually what you describe above -- "to bind an argument > of a function with some fixed value"[1] -- then in general, you should > be able to write this as[2]: > > function_with_fixed_value = partial(function, fixed_value) >
Great ! Great ! Great ! Really, Python is going in the right direction all of the time ! Very good news. Regards Francis Girard > > Steve > > [1] As opposed to binding a name to be used in an _expression_ as you do > in your example. > > [2] The partial function can also be used to fix multiple argument > values and keyword argument values, if that's necessary for your purposes. -- http://mail.python.org/mailman/listinfo/python-list
