Trey Hunner 🐍Python Tip #85 (of 365):
Think of variables as pointers.
When explaining your code in Python, be sure to disambiguate between the 2 types of change (assignments and mutations).
"Changing" a variable just changes which object that variable points to.
"Changing" an object mutates that object. Every reference to that object will "see" the change.
Many Python gotchas derive from the pointer nature of Python's variables.
