[WIP] fix __iter__

[michaeldeistler]

comp = jx.Compartment()
branch = jx.Branch(comp, 2)
cell = jx.Cell(branch, [-1, 0, 0])
net = jx.Network([cell for _ in range(4)])

counter = 0
for cell in net:
    for branch in cell:
        for comp in branch:
            counter += 1

print(counter)  # ==> 3

[jnsbck]

What is the rationale behind this change?

[jnsbck]

I am not so sure if we should assign dim=1 to cell if you technically have no way to index into it (it is the object being indexed into).

[jnsbck]

For consistency, net would also have to have shape=(1,...), which would be odd imo.

[jnsbck]

Should be added to #43 when settled.

[michaeldeistler]

Ah, sorry, I had not meant to request a review yet...

Anyways, __iter__ is broken right now, see the PR description. But let's just talk in person this is not an urgent PR

[jnsbck]

Went over the recent PRs and thought I'd just do a pass of this one as well, even though you did not request it.

Alright sounds good.

[jnsbck]

adressed by #447