Worked on improving the reliability of Python environment setup for the llvm-zorg repository, focusing on compatibility with Python 3.12 and newer versions. Addressed a recurring issue where virtual environments did not automatically include setuptools, which caused failures during LNT initialization and continuous integration. The solution involved updating ClangBuilder.py to explicitly install setuptools using pip, ensuring consistent environment preparation across builds. This change reduced setup-time variance and minimized debugging overhead for downstream projects. The work demonstrated proficiency in Python development and build system management, with careful validation to enhance CI stability and streamline the setup process for Python-based workflows.