Unicode support

[machinehead]

I've encountered some problems using this library with Russian language. As far as I can see, the problem is in the usage of str's and str literals in code, as well as hardcoding character lists for English. I've managed to make some things work in Py2.7 by adding "from future import unicode_literals" to code and tests, adding Russian to character lists and replacing str to unicode in some places. Maybe I'll come up to a pull request, but in the meantime I'd like to know whether you think it's really needed or you have any ideas on how to implement it the most straightforward way.

[qntm]

Have you tried this in Python 3?

Follow-up question, isn't Unicode support a whole different beast between Python 2 and Python 3? I'm okay with supporting both programming languages at once, but if that's about to become impractical then one may need sacrificing.

[pjkundert]

I've used greenery extensively with Unicode, in https://github.com/pjkundert/cpppo. You must use Python3 to gain meaningful Unicode support in greenery, though. There are a host of problems supporting Unicode under Python2.

[machinehead]

Thank you, I'll try to use it with Python3. I didn't consider this as an option before because I've got a bunch of Python 2.7 code, but now I think I can find a way through.

[qntm]

Python 2 support is being dropped in Greenery 3.0.0+ and Unicode support in Python 3 is pretty excellent, so I consider this issue no longer an issue.