Support equality comparison on dict.keys

Author: Laurie Clark-Michalek

lucenequerybuilder/query.py

@@ -27,7 +27,7 @@ def __init__(self, *args, **kwargs):
         self.allow_wildcard=False
         if 'wildcard' in kwargs:
             self.allow_wildcard = kwargs['wildcard']
-        if len(args) == 1 and (not kwargs or kwargs.keys()==['wildcard']):
+        if len(args) == 1 and (not kwargs or list(kwargs.keys())==['wildcard']):
             if isinstance(args[0], Q):
                 if args[0].fielded:
                     self._child_has_field = True