command.py got 2 ways to get annotations. Should pick one

[jeromeetienne]

GSP/gsp/io/command.py

Lines 217 to 218 in 6aefaab

	annotations = func.__annotations__
	annotations = typing.get_type_hints(func)

[rougier]

There's a third recommended way according to: https://docs.python.org/3/howto/annotations.html

[jeromeetienne]

@rougier do you mean we should use the currently recommended way ? https://docs.python.org/3/library/inspect.html#inspect.get_annotations

if so, im not sure i understand why you closed the issue...

[rougier]

Good point. I would go to the recommended way since Python is quick to deprecate stuff and I'm not sure annotation will survive for the next few versions.