py3dns uses 'async' keyword that cannot be used as a attibute name in python 3.7+

[Kevin Fenzi]

Downstream report:

https://bugzilla.redhat.com/show_bug.cgi?id=1583688

With python 3.7, await and async are resevered keywords and cannot be used as attribute names.

Trying to build py3dns with python 3.7 or newer results in:

+ /usr/bin/python3 setup.py build
Traceback (most recent call last):
  File "setup.py", line 7, in <module>
    import DNS
  File "/builddir/build/BUILD/py3dns-3.1.1/DNS/__init__.py", line 27, in <module>
    from .Base import DnsRequest
  File "/builddir/build/BUILD/py3dns-3.1.1/DNS/Base.py", line 100
    self.async=None
             ^
SyntaxError: invalid syntax

Should be easy enough to just rename the attribute... attached patch changes it to 'py3async'.

[Rémi Paulmier (remi-paulmier)]

Hello,

I confirm the bug. I solved it with the same patch, basically (using self.asynchronous instead of py3async).

Is it possible to merge this patch / deploy to pip ?

Best Regards,
Remi

[Scott Kitterman (kitterman)]

Fixed in 3.2.0.