Web Reference: Jun 12, 2009 · In Python, a variable is a name (captured internally as a string) bound to the reference variable that holds the reference value to the target object. The name of the variable is the key in the internal dictionary, the value part of that dictionary item stores the reference value to the target. In this tutorial, you'll explore the concept of passing by reference and learn how it relates to Python's own system for handling function arguments. You'll look at several use cases for passing by reference and learn some best practices for implementing pass-by-reference constructs in Python. Oct 4, 2025 · When you pass an argument to a function, Python passes the reference (address) of the object, not the actual object or a copy. Whether the original data changes depends on whether the object is mutable (can be changed in place) or immutable (cannot be changed once created).
YouTube Excerpt: The same video is re-uploaded with better audio and minor corrections:* https://youtu.be/Bz3ir-vKqkk This video tries to explain ...
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Last Updated: April 7, 2026
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