Online Python Tutor
This is a fantastic tool. I love it.On line #9 of the example program, the string "hello" is assigned to y. On line #12 another string "hello" is used. I don't know anything about the inner workings of Python, but I imagine that these strings would be stored on the heap and possibly 'interned' by the interpreter. Maybe this is being ignored for simplicity, or I am way off the mark.