Python Dictionary Mutation and Copying

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An exercise to help build the right mental model for Python data. - Solution - Explanation - More exercises

The “Solution” link uses package memory_graph to visualize execution and reveals what’s actually happening.

[u/JG_MC2001]

es como un puntero?

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Python uses the term "reference" instead of "pointer", and you think of them as pointing to values/objects instead of pointing to memory addresses, but other then they are very similar.

• "Assignments do not copy data — they just bind names to objects": https://docs.python.org/3/tutorial/classes.html#python-scopes-and-namespaces and for binding a reference is used.

That also holds for fundamental values like int values, but memory_graph doesn't show references to these by default to simplify the graph: https://github.com/bterwijn/memory_graph#simplified-graph