Upgrade to Python 3

[johanfleury]

Hello.

It’s been roughly a year since Python 2 support has stopped, and most distribution have stopped shipping it. It would be great if this exporter could be upgraded to support Python 3.

Are there any technical limitations that would prevent this?

I can work on a PR if help is needed.

[gilgamezh]

Hello, any plans to work in this issue? I can also help if needed.

[saied-nawaz]

Any PR on updating python would be welcome

[root-ali]

Hi saied ,
I done this upgrade. please check my pr and merge if you approve it.
thanks