better init.py explanation in tutorial (#12763)

* better __init__.py explanation in tutorial

* Update Doc/tutorial/modules.rst

Co-Authored-By: methane <songofacandy@gmail.com>

Inada Naoki committed 7y ago

5410d3d283b11e2375f0c1f79728a230edd12bd0

Parent: b5e2959

Committed by GitHub <noreply@github.com> on 4/11/2019, 6:10:35 AM

better __init__.py explanation in tutorial (#12763)