Python 3 support

[betab0t]

I'm trying to build playerc binding for Python 3, everything is done inside venv and seems to build successfully but when I try to import from playerc I'm getting the following error:

Python 3.6.9 (default, Nov  7 2019, 10:44:02)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from playerc import *
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/playerc.py", line 14, in swig_import_helper
    return importlib.import_module(mname)
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 658, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 571, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 922, in create_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: /usr/local/lib/python3.6/site-packages/_playerc.so: undefined symbol: PyBuffer_FromMemory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.6/site-packages/playerc.py", line 17, in <module>
    _playerc = swig_import_helper()
  File "/usr/local/lib/python3.6/site-packages/playerc.py", line 16, in swig_import_helper
    return importlib.import_module('_playerc')
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ImportError: /usr/local/lib/python3.6/site-packages/_playerc.so: undefined symbol: PyBuffer_FromMemory```

[betab0t]

Seems like SWIG built python2 version of playerc binding, but I can't find anywhere how to force it to build for Python 3... any advice?