### Optimize for Performance, Scalability, and Security Use [[unittest]] (included in the Python standard library) or [[pytest]] (third-party testing framework preferred among pros) to write and run runtime and memory allocation tests. Use code coverage tools like coverage.py to identify which parts of your code are not covered by tests. This helps identify areas of code that may need more testing. Using tools like JMeter or Locust can help with performance and load testing. Finally, tools like OWASP ZAP or SonarQube can help identify security vulnerabilities.