Python should not directly compete with go. A sure sign of an inexperienced dev is "why I moved from Lang x to Lang y". You should use and know multiple languages, and know where they fit in. That said, for a lot of cases I think Go steps in where python comes up short, which is definitely performance and concurrency. But if I'm doing something that's too complicated to fit easily in a shell script, but doesn't warrant a lot of time, the brevity of python wins every time.