Merge pull request #827 from sadielbartholomew/open-interval-updates

Minor updates for `open_lower` and `open_upper` `cf.wi` query arguments

cf/query.py

@@ -166,10 +166,11 @@ class Query:
                             evaluated.
     ======================  ==============================================
 
-    In general, each method must have the query value as it's only
-    parameter. The only exception is for `__query_isclose__`, which
+    In general, each method must have the query value as its only
+    parameter. The only exceptions are for `__query_isclose__`, which
     also requires the absolute and relative numerical tolerances to be
-    provided.
+    provided, and for `__query_wi__`, which also requires upper and
+    lower interval openness Booleans to be provided.
 
     When the condition is on an attribute, or nested attributes, of
     the operand, the query interface method is looked for on the
@@ -972,7 +973,7 @@ def _evaluate(self, x, parent_attr):
         if operator == "wi":
             _wi = getattr(x, "__query_wi__", None)
             if _wi is not None:
-                return _wi(value)
+                return _wi(value, self.open_lower, self.open_upper)
 
             if self.open_lower:
                 lower_bound = x > value[0]