Why Python’s Double‑Underscore Variables Aren’t Truly Private (And What Really Happens)

This article explains Python’s name‑mangling for double‑underscore attributes, how they can still be accessed indirectly, the effects of instance attribute shadowing on class variables, and why deleting certain dict attributes raises errors due to CPython’s underlying implementation.

Pythonattribute shadowingclass methods

0 likes · 3 min read

Why Python’s Double‑Underscore Variables Aren’t Truly Private (And What Really Happens)

MaGe Linux Operations

Mar 14, 2017 · Fundamentals

Why Python’s Double Underscore Doesn’t Guarantee True Privacy

This article explains Python’s double‑underscore name‑mangling for private attributes, how they can still be accessed via class methods, the pitfalls of attribute shadowing, and why deleting dict entries may raise errors due to CPython’s underlying C implementation.

CPythonPythonattribute shadowing

0 likes · 4 min read

Why Python’s Double Underscore Doesn’t Guarantee True Privacy