Python Essentials

Summary

We've looked at some core data types available in Python. We've looked at five different kinds of numbers, including integers, floating-point, complex, Fraction and Decimal. Each fills a different niche. Three of these are built-in, the other two must be imported from the standard library.

We've also looked at three different kinds of collections. The tuple is a simple sequence of items with relatively few methods. str is a Unicode string, which has several methods for creating new strings as transformations of existing strings. bytes is a byte string, which also has a variety of methods. We can decode bytes to create Unicode strings. We can encode Unicode strings into bytes.

We've touched on how the import statement is used to introduce ...