Comment by bantatoes

I think this would have depended on the teams/individuals you worked with. I recall some devs being completely clueless about environments - my code (that depends on dozens of other files) in uat is producing different outputs compared to my code in dev, why? Some didn't know how to debug. Many went on to FAANG as senior engineers (including Uber when it was the next big thing), hedge funds (citadel, 2s), startups (twilio, is twitter still a startup?). And as far as python knowledge is concerned - I recall attending a number of python talks given by my former colleagues at Python conferences, various PEP discussions around whether a given PEP would help or be detrimental to qz. As a matter of fact one of the qz core engineers is now also a PSF core engineer. Quartz was polarizing, but there was/is plenty of talent among the engineers. P.S.: fwiw, when I left baml, the migration to 3.6 was nearing completion, and the migration to 3.7 was in progress. I guess at some point we realized python and qz were not going away, we must to migrate, so infra was built out to make future migrations easier.