Ihor Radchenko <yanta...@posteo.net> writes: >> I think it would be feasible to switch non-session blocks to use this >> parser, which IMO is nicer behavior -- the "return" statements always >> felt weird to me. >> >> But a major reason not to do it is to avoid breaking compatibility. Lots >> of old ob-python nonsession blocks with "return" statements out there. > > May we detect if there is a return statement?
That's a nice idea, I like it. Probably there should be a customization `org-babel-python-nonsession-return-style', which could take on the values 'require-return (old behavior), 'last-statement (session style), or 'auto (detect if there is return statement). While technically a breaking change, I think 'auto would be a reasonable default, since it would only change the behavior on the unusual edge case where the user deliberately returned "None" by omitting a return statement.
