Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in the text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. For example: “Python has other statements, such as global or nonlocal, which modify the rules for variables in a particular namespace.”

Bold: Indicates a new term, an important word, or words you see on the screen, such as in menus or dialog boxes. For example: “The base case states that the sum of a zero-length sequence is 0. The recursive case states that the sum of a sequence is the first value plus the sum of the rest of the sequence.”

A block of code is set as follows:

print("Hello, World!")

Any command-line input or output is written as follows:

% conda create -n functional3 python=3.10

Warnings or important notes appear like this.

Tips and tricks appear like this.