Add compatibility for python3

[nsorros]

This PR aims to make the code compatible with Python3 when running with an input file.

There were two problems that needed fixing

• cPickle which has been replaced with pickle
• print statement in loaders

[kylase]

Thanks for the submitting the PR. However, I am holding onto a PR that is Python 3 compatible (#11), which has the same changes you made. Therefore, I won't be merging your changes.

[hblanks]

@kylase - thanks for the review! But we'd love to get Python 3 support in, as otherwise we're obliged to maintain our own fork of the project.

Could @nsorros or I either help you get PR #11 merged, or help you split it into one change for Python 3 compatibility, and one for the training fix?

[kylase]

@hblanks Thanks for the offer!
I am working on #11 this week and should be able to merge it by end of this week. 🤞

[knmnyn]

Thank you all for your continued support of Neural ParsCit! @kylase is our key developer at this point and is looking at scalability issues, just FYI.

[kylase]

@nsorros and @hblanks I have released a patch that incorporated minor Python 3 compatibility. You can try it out and let me know if there are issues.