relax variables type check

src/DMDO/variables.py

@@ -91,7 +91,7 @@ def __truediv__(self, other):
       return np.divide(self.value, other)
 
   def __update__(self, other):
-    if type(other)!=variableData and type(self.value) != type(other):
+    if type(other)!=variableData:
       raise IOError(f'The variables data dunder equality method of {self.name} expects a variable data object as an input or variable values with the same type of {self.name}!')
     if isinstance(other, variableData):
       self =  copy.deepcopy(other)