removed __len__ method for now as must return int, not array.

Author: MauroCE

brml/prob_tables/array.py

@@ -64,11 +64,16 @@ def sum(self, variables=None):
         newpot.set_table(table=t)
         return newpot
 
-    def sumpot(self, axis):
+    def sumpot(self, variables=None, sumover=True):
         """
         This method does marginalization. It sums over a variable.
         TODO: See if this has to be moved to Potential class instead.
-        :param axis:
+        :param variables: Variables to consider.
+        :type variables: list or numpy.array
+        :param sumover: Whether variables specified with "variables" argument
+                        are to be summed over, or if they are the ones to keep
+                        at the end.
+        :type sumover: bool
         :return:
         """
         pass

brml/prob_tables/potential.py

@@ -53,15 +53,6 @@ def __repr__(self) -> str:
                                 self.variables, self.table)
         return s
 
-    def __len__(self):
-        """
-        Overwrites the behavior of the __len__ call (for instance len(Array).
-        When calling len(Array) it is equivalent to just call Array.size()
-        :return: Number of states in the Array's table
-        :rtype: numpy.array
-        """
-        return self.size()
-
     @staticmethod
     def _check_variables(variables):
         """