[Python-modules-team] Bug#903527: python3-motor fails to install with Python 3.7 as suported version

[Adrian Bunk]

Package: python3-motor
Version: 1.2.3-1
Severity: grave
Control: block 902788 by -1

Setting up python3-motor (1.2.3-1) ...
  File "/usr/lib/python3/dist-packages/motor/frameworks/asyncio/__init__.py", line 32
    from asyncio import async as ensure_future
                            ^
SyntaxError: invalid syntax

dpkg: error processing package python3-motor (--configure):
 installed python3-motor package post-installation script subprocess returned error exit status 1