Review status: 0 of 1 files reviewed at latest revision, 3 unresolved discussions.

frequency.py, line 32 [r1] (raw file):
This could be done more concisely.

frequency.py, line 46 [r1] (raw file):
I'm not sure I understand what you're doing here, why not just say d[c]=1?

frequency.py, line 74 [r1] (raw file):
Could stand to be in an if name equals main statement.

Comments from the review on Reviewable.io