Built-in Types¶ The following sections describe the standard types that are built into the interpreter. The principal built-in types are numerics, sequences, mappings, classes, instances and exceptions. Some collection classes are mutable. The methods that add, subtract, or rearrange their members in place, and don’t return a specific item, never return the collection instance itself but None. Som
![Built-in Types](https://cdn-ak-scissors.b.st-hatena.com/image/square/3a53e982d46d56c53fb3e7f0b5e3d2ce30a8f391/height=288;version=1;width=512/https%3A%2F%2Fdocs.python.org%2F3%2F_static%2Fog-image.png)