We all use the Python language to write programs, but have you ever thought about trying to change the language itself? Perhaps you have wondered, “What would Python be like if it adopted my favourite feature from another language?” Or, maybe you have dreamt up an exciting new addition to the language that you are certain other developers would love to use, if only there was a way they could actually trying using it first. In this talk you will learn how you too can become a programming language explorer and create experimental new dialects of the Python language that you can actually write real code in and run, all using pure Python.