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

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "If you don't have Jupyter already, simply install it with pip install jupyter and then run it with Jupyter Notebook."

A block of code is set as follows:

from sklearn.datasets import load_boston 
boston = load_boston()

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

>>> import numpy
>>> numpy.version.full_version 
1.13.3

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "We select Launch Instance, which leads to the following screen, asking us to select the operating system to use."