This was back in 2005-2006. I was working with a guy who loves to code. His favorite way to spend the weekend was to figure out ways to make our services more

This was back in 2005-2006. I was working with a guy who loves to code. His favorite way to spend the weekend was to figure out ways to make our services more robust and optimized. He had one major disadvantage. His forgetfulness was legendary. He could barely remember what happened in the morning or what code he wrote. He made this his strength by writing the cleanest and well-structured code I have ever seen. So, not only him, but anyone, without any prior knowledge, can jump into the code at any point in time and immediately understand the flow and be productive. Obviously, it helps that the code was in Python, but being in python by itself does not a great code make.