How Memory Mapping Actually Works in Python | Variables, References & Objects Explained
Ever wondered what really happens when you write a = 10 in Python?
Most people think the variable "a" stores the value 10. That's what every textbook says. But that's not how Python works internally.
In this video, I break down the complete memory mapping mechanism of Python — step by step, with live code and visual explanations.
📌 Key Concepts Covered:
→ Python variables store references, not values
→ id() function returns the memory address of an object
→ Integer interning (-5 to 256) — Python reuses these objects
→ Difference between == (value check) and is (identity check)
→ Reference counting — how Python tracks object usage
💡 Who is this video for?
→ Python beginners who want to go beyond syntax
→ Students preparing for interviews where memory questions are common
→ Self-taught developers who want to understand Python at a deeper level
→ Anyone who watched the Instagram reel and wanted the complete explanation
🧪 Try this after watching:
a = 10
b = 10
print(id(a))
print(id(b))
print(a is b)
You'll never look at a Python variable the same way again.
👇 Drop a comment: Did you know variables don't actually hold values? Be honest!
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