improve hold spynnaker/pyNN/__init__.py offers classes

[Christian-B]

most of our scripts are in the format

import pyNN.spiNNaker as sim
sim.setup(timestep=1.0, n_boards_required=1)
pop_1 = sim.Population(1, sim.IF_curr_exp(), label="pop_1")

But pycharm if you attempt to go to sim.IF_curr_exp() it only goes to init.py
And from there it is hard to find the code

bigger worry is that mypy also has trouble following the connection.

[rowleya]

I would expect mypy to follow the links. It isn't technically incorrect to do this, but I agree that it can be a bit of a pain to find things. It is hard to fix if we want to allow the import as PyNN requires though...

[Christian-B]

mypy can not follow the links as PyNN is untyped.

We may have to write our own typingf
see https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

[rowleya]

It should be able to follow the links in our code. Most of our code mirrors PyNN rather than uses it...

[Christian-B]

the reason mypy did not work is that PyNN is untyped.

This can be fixed by adding a py.typed to the pyNN.spiNNaker directory.

[Christian-B]

Main issue is that my IDE can not follow the import.

So adding a stub class allows the IDE to find the stub but them not the underlying class