This is the no. 1 reason I use notebooks. I recently worked on a Python library for an undocumented API that returned broken, non-semantic HTML. Counting spans,

This is the no. 1 reason I use notebooks. I recently worked on a Python library for an undocumented API that returned broken, non-semantic HTML. Counting spans, parsing inline styles - that kind of hell. I honestly don't think I could've done it without Jupyter.