LGTM.com - false positive, python: Using a non-iterable as the object in a 'for' loop

[snarfed]

Description of the false positive

The loop object is expected to be an iterable. The code actually calls iter() on it before the loop to enforce that. I'm not sure why the analysis thought it might not be.

https://lgtm.com/projects/g/snarfed/granary/snapshot/2029f12edb95da96a5f1b39ecfcce440c8d75dea/files/granary/jsonfeed.py#xb80999fcab2f40c8:1

maybe related to #1833? different repro though.

thanks for all your work on LGTM and QL, they're both great!