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python

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Current LevelInitiate
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  • CPython Execution Architecture & Bytecode Compilation
  • Variables as Name Bindings & Reference Pointers
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Chapter 1 — Introduction to Python & The CPython Architecture•Lesson 2

Variables as Name Bindings & Reference Pointers

Understand that Python variables are not memory boxes that hold values; they are name tags (labels) pointing to dynamically allocated PyObject instances on the Heap.

> **Key Takeaway:** Variables in Python are pointers (references). Assignment 'a = b' does not copy memory; it binds two labels to the exact same Heap object.
Python 3.11
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Interactive Challenge
+50 XP
Challenge Objective

Create a shallow copy of a list using list slicing ([:]) or .copy() and demonstrate that 'is' evaluates to False while '==' evaluates to True.

solution.py
UTF-84 SpacesAuto-saved
cpython3.11:~/workspace
CPython 3.11.8 (WASM)
$python3 -u solution.py
Click "Compile & Run" (or press Ctrl + Enter) to compile AST, verify bytecode, and execute the solution.