Cannot convert {my-type} to Excel
Created originally on Bitbucket by jgbcodemonkey (Jonah Bishop)
I have a subclass of the datetime.date class that I am trying to use with Openpyxl 2.6.2. This code worked in 2.5.x, but 2.6 broke it. I have attached a self-contained script that can reproduce the issue.
Attachments: openpyxl-bug.py