#!/usr/bin/env python
# coding: utf-8

# # Chapter 6: Text & Bytes (TL;DR)

# Textual data is modeled with the **immutable** `str` type.
# 
# The `str` type supports *four* orthogonal **abstract concepts** that together constitute the idea of a **sequence**: Every `str` object is an *iterable container* of a *finite* number of *ordered* characters.
# 
# A single **character** in a `str` object follows the idea of a **Unicode** character. It is mapped to a *unique* **code point** that is encoded into **bytes** with a dedicated character encoding, for example, **UTF-8**.