Python 2 iframe renderer follow-on to (#1809)#1822

Merged

jonmmease merged 2 commits intomasterfrom

Oct 16, 2019

Commits on Oct 15, 2019

Revert back to makedirs with exist_ok in codegen since this is already Python 3 only
jonmmease
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Follow the Python 3 makedirs implementation by checking isdir rather than errno
jonmmease
committed