Linux developers wiki page does not say that the `mercurial` python module is needed
Created originally on Bitbucket by Russell Warren
This wiki page:
https://bitbucket.org/tortoisehg/thg/wiki/developers/Linux
does not indicate that the mercurial
python module is needed. History, and an example of the resulting failure (due to an old version of this module) are in this issue:
https://bitbucket.org/tortoisehg/thg/issues/4929/module-object-has-no-attribute-command-on