Bug#830365: sympy: FTBFS: Please install the mpmath package with a version >= 0.19

[Lucas Nussbaum]

Source: sympy
Version: 1.0-1
Severity: serious
Tags: stretch sid
User: debian-qa at lists.debian.org
Usertags: qa-ftbfs-20160707 qa-ftbfs
Justification: FTBFS on amd64

Hi,

During a rebuild of all packages in sid, your package failed to build on
amd64.

Relevant part (hopefully):
>  fakeroot debian/rules clean
> dh  clean --with python2,python3 --buildsystem=pybuild
>    dh_testdir -O--buildsystem=pybuild
>    debian/rules override_dh_auto_clean
> make[1]: Entering directory '/«PKGBUILDDIR»'
> dh_auto_clean
> I: pybuild base:184: python2.7 setup.py clean 
> /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'install_requires'
>   warnings.warn(msg)
> running clean
> I: pybuild base:184: python3.5 setup.py clean 
> Please install the mpmath package with a version >= 0.19
> E: pybuild pybuild:274: clean: plugin distutils failed with: exit code=255: python3.5 setup.py clean 
> dh_auto_clean: pybuild --clean -i python{version} -p 3.5 returned exit code 13
> make[1]: *** [override_dh_auto_clean] Error 25

The full build log is available from:
   http://people.debian.org/~lucas/logs/2016/07/07/sympy_1.0-1_unstable_reb.normal.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.