Minor Changes for 3.7 Compatability

[henry232323]

Pretty self explainable I think

[lakodarmstadt]

Hey, I just installed some other python package using quamash on a fresh python3.7 and ran into some errors. After updating quamash with this pull request all errors were gone and everything worked fine. So I would appreciate if this PR can be merged soon as others will for sure run into the same errors.

[harvimt]

PR won't be merged until the tests pass.

[henry232323]

Any tips for passing the tests? It looks like for the ones that fail it's a failure in the environment? Or maybe I'm misreading

[harvimt]

Sorry I hadn't even looked at the build logs. I ignored this PR since I knew I would have to fix the tests, but looking at it, they're actually all passing (as well as they were) except the style checker.

The AppVeyor tests are actually passing as well as they always have. Travis tests are failing with ./setup.py:20:22: C819 trailing comma prohibited which seems to be a new feature check added to flake8-comma, but it's a good one, please change packages=['quamash', ], in setup.py to packages=['quamash'], to fix this.

Additionally, you're changing all my precious tabs to spaces, please change the spaces back to tabs, and fix the comma, and that should be sufficient for a merge + upload.

If your editor automatically turns tabs to spaces, please find one which is compatible with "editorconfig" config files.

[henry232323]

I do believe the tabs are in order (sorry I'm a spaces guy myself), I think one of the earlier commits accidentally converted them, and then I set them back, because both in my editor and my repository they seem to be working right. (Luckily PyCharm has a nice .editorconfig plugin)

[henry232323]

PyQt4 fails on 3.6, 3.5, and 3.4 for lack of an available version Sip fails on 3.4 for PyQt5 Lord knows whats happening with PySide for 3.4

quamash\__init__.py ..                                                   [  4%]
tests\test_qeventloop.py ........................................        [ 93%]
tests\test_qthreadexec.py ...                                            [100%]
========================== 45 passed in 7.62 seconds ==========================
Command exited with code -1073741819

This all being just for the appveyor checks

[harvimt]

Yeah I spent several hours looking at the PySide tests on Windows awhile ago and couldn't figure them out, someone pointed out the exit code is a windows error code (convert negative number to unsigned hex) for 0xc0000005 Access Violation

>>> hex(-1073741819 + 2**32)
'0xc0000005'

Anyway, tests are passing, whitespace is back in order (probably my fault for letting it drift to half spaces half tabs oops).

Would be good to add tests for 3.7 since that's the intent of this PR, but as it is at least it's not making anything worse, and it gets rid of __import__ which was deprecated even when I wrote that code.

[harvimt]

Alright release 0.6.1 built and deployed.