Worked on improving the accuracy of the unittest documentation in the python/cpython repository by addressing a specific typo, changing 'hastattr' to 'hasattr' to correctly reflect the actual API behavior. This update, implemented using Python and a focus on documentation and testing, aimed to reduce confusion for both users and contributors interacting with the unittest module. The correction enhanced the clarity of the documentation, supporting better onboarding and a smoother development experience. By ensuring the documentation matched the codebase, the work contributed to the maintainability and usability of CPython’s testing framework during the month of May 2026.