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References
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- `https://www.packtpub.com/application-development/clean-code-python <https://www.packtpub.com/application-development/clean-code-python>`_
- `https://www.packtpub.com/application-development/expert-python-programming-third-edition <https://www.packtpub.com/application-development/expert-python-programming-third-edition>`_
- `https://www.packtpub.com/application-development/mastering-python-design-patterns-second-edition <https://www.packtpub.com/application-development/mastering-python-design-patterns-second-edition>`_
- `https://www.packtpub.com/application-development/hands-data-structures-and-algorithms-python-second-edition <https://www.packtpub.com/application-development/hands-data-structures-and-algorithms-python-second-edition>`_