Confirm support for Python 3

[mulka]

It looks like this library supports python 3, but I'm not 100% sure. If so, could you make it so that this tool doesn't report the library as blocking:
https://caniusepython3.com/project/Logentries

I think what you need to do is add classifiers to setup.py like this:
classifiers=[
'Programming Language :: Python :: 2',
'Programming Language :: Python :: 3',
]

[jcftang-r7]

We probably need tests to validate if this works with python 3. From what I understand in how the library works, it probably won't work well with python3 due to the way the 'msg' line is processed.

[graingert]

also Queue is from Python 2

[drgarcia1986]

I'm using with python3 in production in more than one year, and only two problems than I found ( #46 and #53 I don't understand why this PRs is not merged =/ )