Ubuntu 16.04: can't compile stable branch

[Denis Laxalde]

Uwe Brauer a écrit :
>    > Also confirming Matt's reply, this will build the Python 3 version. On
>    > Ubuntu 16, this is apparently python 3.5.1, which is not supported on
>    > our side I think.
> 
> Right, I can confirm that, the build process went much further but then
> 
[...]
> Maybe that should be mentioned in the README file or any other relevant
> file?

Perhaps this will be noted in the release notes.

At the moment, this is stated in setup.py but this is not enforced if
not using setuptools (which the Debian packaging isn't). Also, the check
is not even active if HGALLOWPYTHON3 environment varibale is not set
(should be fixed by https://phab.mercurial-scm.org/D7151).