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Jul 1, 2024 · Backend Development
Resolving Data Contamination in Multithreaded Security Testing by Redesigning Class Attributes in Python
This article explains how using a shared class attribute to store open ports in a Python security‑testing framework can cause data contamination across threads, demonstrates the problem with example code, and presents three solutions—reinitializing the attribute, using contextvars, and employing threading.local—to ensure thread‑local isolation and accurate port scanning.
Class AttributesContextVarMultithreading
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