If the convention in Python is to capitalize classes, why then is list() not capitalized? Is it not a class?

Question

Often when I see class definitions class Foo:, I always see them start with upper case letters.

However, isn\'t a list [] or a dict {

Answer 1

PEP8 is the place to go for code style.

To address your question on why list = list() is valid, list is simply a name in the global namespace, and can be overriden like any other variable.