> That said, though: if you want to distinguish a lambda function from a > def function, you can do so with reasonable reliability using the > function's name:
That's what I'm using currently, thank you for the suggestion. Nonetheless, it feels hacky - that's why I tried to use LambdaType and, to my surprise, it didn't do the job. Sincerely, Iwo Herka niedz., 25 lis 2018 o 20:41 Chris Angelico <ros...@gmail.com> napisał(a): > > On Mon, Nov 26, 2018 at 6:06 AM Iwo Herka <iwohe...@gmail.com> wrote: > > > > Hello, > > > > Can someone please provide a use-case for having LambdaType > > separate to FunctionType? > > Clarification: This is talking about the 'types' module. > > > Since they are equal > > (LambdaType == FunctionType) it seems a bit superfluous to me. > > For example, I cannot do the following: > > > > if type(foo) is FunctionType and not type(foo) is LambdaType: > > ... > > > > I was actually unaware of LambdaType even existing. Obviously it has > to be the same as FunctionType (even more strongly than you put it: > "types.LambdaType is types.FunctionType"), so I agree, it's > superfluous. Maybe it's in case some other Python implementation might > distinguish?? > > https://docs.python.org/3/library/types.html#types.FunctionType > > That said, though: if you want to distinguish a lambda function from a > def function, you can do so with reasonable reliability using the > function's name: > > >>> def is_lambda(f): return f.__name__ == "<lambda>" > ... > >>> is_lambda(is_lambda) > False > >>> is_lambda(lambda x: x+1) > True > > ChrisA > -- > https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
