What if a function has argument types but no return type? about typing HOT 5 CLOSED

I think 1 sounds good. What if some of the arguments are not annotated?

from typing.

I always assumed this would be (1), because "unannotated" means "Any" in
general.

On Thu, Jan 15, 2015 at 7:16 AM, Andrey Vlasovskikh <
[email protected]> wrote:

I think 1 sounds good. What if some of the arguments are not annotated?

—
Reply to this email directly or view it on GitHub
#37 (comment).

--Guido van Rossum (python.org/~guido)

from typing.

Okay, 1 is reasonable and how it currently works in mypy. Maybe the examples in the PEP should be modified to include the return value type, even if it's None? Otherwise, it may give the impression that leaving out the return type is generally the right thing to do, even though statically typed code generally should explicitly define return types, as the implicit Any types limit the type checker's effectiveness.

from typing.

Agreed, the PEP should only show fully-annotated examples, except where explaining what leaving out annotations means.

from typing.

Looks like a duplicate of #65

from typing.