Port to Python 3

[vinayak-mehta]

Have to figure out if the following dependencies work as expected, in Python 3:

• https://github.com/pdfminer/pdfminer.six (unofficial port)
• OpenCV

Thinking of starting with using things from __future__ wherever possible (mostly print, division and unicode_literals), and create a release for Python 2. That should make it easy for us to create a Python 3 release once the deps are sorted.

[vinayak-mehta]

Added __future__ imports for division, removing from 0.1.0 milestone.

[vaibhavmule]

I have never made a project that supports both Python 2.x and Python3.x version,

It will be learning for me, I can help for porting this library to Python3,

Let me know How can I get started?

[vinayak-mehta]

Hello @vaibhavmule! I'd already created a branch for this locally, let me push it. I've used pdfminer.six instead of pdfminer, and the tests are passing (after some minor modifications). You can check out the following links which show how to write Python 2+3 compatible code:

1. http://python3porting.com/
2. http://python-future.org/compatible_idioms.html

You can also look into adding more tests and increase the code coverage, if you're up for it! I will open up an issue and create an initial list of things which should be tested, to which we can both add, and then go from there.

[vaibhavmule]

Yes that is what I read, test coverage is needed.

LGTM, you can go ahead and create an issue.

And push the branch, may be I can contribute that too.