Distinct operator should work in python generator

[priyanka-amarnani-th]

Bug Report

Expected Result:

Given a rune code that uses the distinct operator, the result should be a list containing only distinct elements. The Python generator uses a set to replicate this logic.

Actual Result:

The actual result is a 'unhashable type' error. This happens because the objects in the Python generator derive from BaseDataClass and there is no __hash__() function defined for it.

Possible solutions:

Add a __hash__() function in the definition of BaseDataClass.