Possible documentation problem in GroupBy section

[td2014]

Hi. I'm not understanding the following section in the pandas doc regarding "Flexible apply" on the following page: http://pandas.pydata.org/pandas-docs/stable/groupby.html: Is the python error about missing parentheses (I suppose a v2 to v3 issue with print) intended to be the explanatory result? If so, it seems confusing in this context. Is this a bug in the code that is generating the example for the doc. Thanks.

[jreback]

this is an error in the docs which are built with py3

a PR to fix would be great

[td2014]

A bit more investigation shows that it looks like this parentheses matter was fixed in issue #16862 (#16862) and merged to master, but the current pandas documentation is not reflecting the change: http://pandas.pydata.org/pandas-docs/stable/groupby.html

[gfyoung]

@td2014 : That's because we don't build the docs daily (correct me if I'm wrong @jreback, and if we don't, maybe we should build a dev-version of the docs ?)

[jorisvandenbossche]

It's indeed fixed in the master docs. @td2014 the stable docs will be updated once a next release it out. Closing this then, but thanks for reporting!

[jorisvandenbossche]

dev docs is here: http://pandas-docs.github.io/pandas-docs-travis/groupby.html#flexible-apply