Python 3 support is currently broken

[joachimmetz]

Collecting efilter>=1-1.5 (from -r requirements.txt (line 14))
  Using cached efilter-1453815385.tar.gz
    Traceback (most recent call last):
      File "<string>", line 20, in <module>
      File "/tmp/pip-build-6uvgthat/efilter/setup.py", line 18, in <module>
        from efilter import version
      File "./efilter/__init__.py", line 3, in <module>
        from efilter import ext
      File "./efilter/ext/__init__.py", line 1, in <module>
        from efilter.ext import indexset
      File "./efilter/ext/indexset.py", line 26, in <module>
        from efilter.protocols import indexable
      File "./efilter/protocols/indexable.py", line 22, in <module>
        from efilter import protocol
      File "./efilter/protocol.py", line 66, in <module>
        BUILTIN_TYPES = (int, float, long, complex, basestring, tuple, list, dict, set,
    NameError: name 'long' is not defined
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

      File "<string>", line 20, in <module>

      File "/tmp/pip-build-6uvgthat/efilter/setup.py", line 18, in <module>

        from efilter import version

      File "./efilter/__init__.py", line 3, in <module>

        from efilter import ext

      File "./efilter/ext/__init__.py", line 1, in <module>

        from efilter.ext import indexset

      File "./efilter/ext/indexset.py", line 26, in <module>

        from efilter.protocols import indexable

      File "./efilter/protocols/indexable.py", line 22, in <module>

        from efilter import protocol

      File "./efilter/protocol.py", line 66, in <module>

        BUILTIN_TYPES = (int, float, long, complex, basestring, tuple, list, dict, set,

    NameError: name 'long' is not defined