Cleanup

nifty5/field.py

@@ -737,8 +737,6 @@ class Field(object):
         return self.isEquivalentTo(other)
 
 
-COUNTER = 0
-
 for op in ["__add__", "__radd__", "__iadd__",
            "__sub__", "__rsub__", "__isub__",
            "__mul__", "__rmul__", "__imul__",
@@ -754,12 +752,6 @@ for op in ["__add__", "__radd__", "__iadd__",
             if isinstance(other, Field):
                 if other._domain != self._domain:
                     raise ValueError("domains are incompatible.")
-                if (self==0).all() or (other==0).all():
-                    COUNTER += 1
-                    print("({}) zero Field detected".format(COUNTER))
-                    print("op = ", op)
-                    # import traceback
-                    # traceback.print_stack()
                 tval = getattr(self.val, op)(other.val)
                 return self if tval is self.val else Field(self._domain, tval)