Python is a great language for beginners to learn, and mastering variables and data types is a crucial step in becoming proficient in Python programming.

This makes Python flexible and convenient for developers because you don’t have to rigorously define and track variable types if you’re just throwing together a quick-and-dirty script.

In Python, however, there's no need to define a type. You can just use the variable name and the initial value. Python automatically figures out what your variable type is supposed to be. For example: ...

Mypy, Pytype, Pyright, and Pyre can help you keep your type-hinted Python code bug-free. Let’s see what each of these useful tools has to offer.