In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows "Launch PySpark with IPYNB in directory examples/AN_Spark where the Jupyter or IPython Notebooks are stored".

A block of code is set as follows:

# Word count on 1st Chapter of the Book using PySpark

# import regex module
import re
# import add from operator module
from operator import add


# read input file
file_in = sc.textFile('/home/an/Documents/A00_Documents/Spark4Py 20150315')

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

# install anaconda 2.x.x
bash Anaconda-2.x.x-Linux-x86[_64].sh

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "After installing VirtualBox, let's open the Oracle VM VirtualBox Manager and click the New button."