On 06/12/2015 05:26 PM, Ian Kelly wrote:
for stuff, branch in zip(stuffs, branches):
> # compute flux
> ...
> # add to the downstream branch
> id_branch = branches.index(branch.flows_to)
> branches[id_branch].property.append(stuff_i_computed)
Er, I don't see the problem here. The branch object in the zip list
and the branch object in branches should be the*same* object, so the
downstream branch update should be reflected when you visit it later
in the iteration, regardless of whether zip returns a list or an iterator.
Tangentially, unless you're using id_branch for something else that
isn't shown here, is it really necessary to search the list for the
downstream branch when it looks like you already have a reference to
it? Could the above simply be replaced with:
branch.flows_to.property.append(stuff_i_computed)
Thanks a lot for your careful reading! I overly simplified my example
and indeed this line works fine. I was adding things to "stuffs" too,
which is a list of lists... Sorry for the confusion!
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