On Mar 19, 2016, at 18:18, Guido van Rossum <gu...@python.org> wrote: > > Second, https://github.com/python/typing/issues/186. This builds on > the previous syntax but deals with the other annoyance of long > argument lists, this time in case you *do* care about the types. The > proposal is to allow writing the arguments one per line with a type > comment on each line. This has been implemented in PyCharm but not yet > in mypy. Example: > > def gcd( > a, # type: int > b, # type: int > ): > # type: (...) -> int > <code here>
This is a lot nicer than what you were originally discussing (at #1101? I forget...). Even more so given how trivial it will be to mechanically convert these to annotations if/when you switch an app to pure Python 3. But one thing: in the PEP and the docs, I think it would be better to pick an example with longer parameter names. This example shows that even in the worst case it isn't that bad, but a better example would show that in the typical case it's actually pretty nice. (Also, I don't see why you wouldn't just use the "old" comment form for this example, since it all fits on one line and isn't at all confusing.) _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
