Update the setup.py script for Python >3.7

[alexeyegorov]

I have forked and fixed the installation issue that was stated in the other pull request #35 that references problems in #24 etc.

Unless this is merged here, you can also use the direct forked repo https://github.com/alexeyegorov/GuidedLDA.

[alexeyegorov]

I am able to install it in my conda environment by this command

- pip:
    - git+https://github.com/alexeyegorov/GuidedLDA

Hence, this should be also possible after the merge.

[HrishikeshGadekar]

I am able to install it in my conda environment by this command

- pip:
    - git+https://github.com/alexeyegorov/GuidedLDA

Hence, this should be also possible after the merge.

Hi @alexeyegorov , I have installed the module from your GitHub repository. However, I am still facing 'AttributeError: module 'guidedlda' has no attribute '_guidedlda' on my Windows 10 machine with Python 3.6. It would be really great if you could help.