On Sat, Jun 6, 2020 at 2:36 AM Agnese Camellini <agnese.camell...@gmail.com> wrote: > > Hello to everyone, lately i building up an open source project, with some > collaborator, but one of them cannot contribute any more. He is a solution > architect so he is very skilled (much more than me!). I am now analysing > his code to finish the job but i don't get this use of the lambda arrow, > it's like he is deplaring the returned tipe in the function signature (as > you would do in Java). I have never seen something like this in python.. > > Can someone please explain to me this usage (the part regarding the > question is highlighted in yellow): > > @classmethod > def extract_document_data(cls, file_path : str) -> DocumentData:
I don't know what you highlighted in yellow, as that part didn't come through. But in Python, that arrow has nothing to do with lambda functions; it is exactly as you describe, annotating a function with the type of its return value. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
