Monkey-patch of _serialize_xml not compatible with Python 3.4's ElementTree

[exomoxo]

In Python 3.4, a keyword argument was added to ElementTree's _serialize_xml: short_empty_elements. The monkey-patch at https://github.com/seveas/python-hpilo/blob/master/hpilo.py#L85 does not handle keyword arguments.

There's no documentation for _serialize_xml, but the new short_empty_elements argument is documented for other high level methods.

[seveas]

I fixed this literally 8 minutes before you reported it 😄

[exomoxo]

That's great! I can now safely re-download from pip without having to patch those lines each time.

Thank you :)

[seveas]

Not quite yet, the fix is not yet in a released version (it will be in the next few days, maybe even today)