Firstly thank you for this repo! It looks useful.
I was looking over the code and I notice that you continue to use goslate even though it was last updated over five years ago (Jan 2016) and the source to the version in PyPI is no longer available.
From what I can see in PyPI it no longer works anyway, given Google changes, so it seems like it might be worth either cutting it out of PyDictionary or looking for an alternate (if there's a reasonable way to do that?)