O'Reilly logo

Learning Python by Fabrizio Romano

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Immutable sequences

Let's start with immutable sequences: strings, tuples, and bytes.

Strings and bytes

Textual data in Python is handled with str objects, more commonly known as strings. They are immutable sequences of unicode code points. Unicode code points can represent a character, but can also have other meanings, such as formatting data for example. Python, unlike other languages, doesn't have a char type, so a single character is rendered simply by a string of length 1. Unicode is an excellent way to handle data, and should be used for the internals of any application. When it comes to store textual data though, or send it on the network, you may want to encode it, using an appropriate encoding for the medium you're using. String literals ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required