Monkey Patching

Table of Contents

1. Overview

  • Definition:
    • Monkey patching is a programming practice that involves modifying a class or module at runtime, allowing for alterations in behavior without altering the original source code.
  • Use Cases:
    • Debugging: Temporarily override methods to print logs or alter behavior for testing.
    • Feature Enhancement: Add new functionalities to existing classes or libraries without explicit modification.
    • Fixing Bugs: Provide immediate fixes for bugs within libraries where source access may be limited.
  • Languages Commonly Used In:
    • Python, Ruby, JavaScript, and other dynamic languages that support runtime code modification.
  • Implications:
    • Pros:
      • Flexibility: Allows developers to adapt code quickly.
      • Fast Implementation: Quick fixes or enhancements can be applied without the need for full redeployment.
    • Cons:
      • Maintenance Challenge: Makes tracking changes and debugging more complex.
      • Risk of Compatibility Issues: Changes may cause conflicts when updating underlying libraries or frameworks.
      • voilation of the "closed" in open/closed principle of SOLID Principles
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