Changelog:
===========
*Alembic 1.8 now supports Python 3.7 and above.
*The "Pylons" environment template has been removed as of Alembic 1.8. This
template was based on the very old pre-Pyramid Pylons web framework which
has been long superseded by Pyramid.
Signed-off-by: Zheng Ruoqin <zhengrq.fnst@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>