It would be useful to have +REPORT_NDIFF option applied to pdb doctests because it makes it much more convenient to add / modify pdb tests, to fix pdb bugs, add pdb features.

I've worked on two pdb issues in the last few months and I wasn't aware of +REPORT_NDIFF, and so I was just looking at the output of failing tests (which are very long for some pdb tests), and comparing them manually.

This option, when enabled, automatically provides diff with in-line highlighted difference for a failed doctest. Otherwise two chunks of text are provided, 'EXPECTED' and 'GOT ...'.