[Python-modules-team] Bug#903218: Presents itself with Python 3.7

[Paul R. Tagliamonte]

With Python 2.6:

```
paultag at nyx:~/dev/local$ python3.6
Python 3.6.6 (default, Jun 27 2018, 14:44:17)
[GCC 8.1.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import foo.async
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'foo'
>>>
```

With Python 3.7:

```
paultag at nyx:~/dev/local$ python3.7
Python 3.7.0 (default, Jun 27 2018, 14:40:03)
[GCC 8.1.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import foo.async
  File "<stdin>", line 1
    import foo.async
                   ^
SyntaxError: invalid syntax
>>>
```

   Paul

-- 
:wq