`.fielded` gets maximum recursion error in Python3

[versae]

I am trying this code:

>>> from lucenequerybuilder import Q
>>> Q("do*", wildcard=True).fielded

And then I get:

RuntimeError: maximum recursion depth exceeded

Same code works as expected in Python 2.7:

>>> from lucenequerybuilder import Q
>>> Q("do*", wildcard=True).fielded
False

[mhluongo]

Thanks for the catch @versae - any interest in fixing it? :)

[versae]

I think that the problem comes from this line:

    # [...]
    @staticmethod
    def _has_field(val):
        if hasattr(val, '__iter__'):  # <- HERE! In Python 3 't' always has '__iter__', I think
            return any(Q._has_field(t) for t in val)
        else:
            return hasattr(val, 'field') and val.field is not None