Bug#919409: scikit-learn: binary-any FTBFS

[Adrian Bunk]

Source: scikit-learn
Version: 0.20.1+dfsg-2
Severity: serious
Tags: ftbfs
Control: block 907806 by -1

https://buildd.debian.org/status/package.php?p=scikit-learn&suite=sid

...
python3.7 -m sphinx -j 4 -D mathjax_path=MathJax.js -b html -d _build/doctrees    . _build/html/stable
/usr/bin/python3.7: No module named sphinx
make[1]: *** [Makefile:47: html] Error 1


Seems some package(s) have to move from Build-Depends-Indep
to Build-Depends.