> Python allows you to get pretty creative with the code you’re writing. For instance, you can: > Use MetaClasses to self-register classes upon code initializa

> Python allows you to get pretty creative with the code you’re writing. For instance, you can: > Use MetaClasses to self-register classes upon code initialization Avoid metaclasses.... > Swap out True and False Not possible anymore > Add functions to the list of built-in functions What are the practical reasons? > Overload operators via magic methods Useful but also recommend don’t. I can see someone writting numpy would do that, but most applications don’t have a reason Profile profile profile! Find the bottlenecks.