BEGINNER
⏱️ 30 min read
Pythonista Social Club
Python From First Principles
Build a rock-solid mental model of Python execution, memory model, and object references.
Author: Sian Builder
• Published: 15 Oct 2026
Python From First Principles
Welcome to the Pythonista Social Club foundation tutorial!
a = [1, 2, 3]
b = a
b.append(4)
print(a) # [1, 2, 3, 4]
Tagged with:
Python
Fundamentals
Memory