Conventions

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: "To execute this first example, we need the program helloPythonWithThreads.py."

A block of code is set as follows:

print ("Hello Python Parallel Cookbook!!")
closeInput = raw_input("Press ENTER to exit")
print "Closing calledProcess"

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

@asyncio.coroutine
def factorial(number):
do Something

@asyncio.coroutine

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

C:\>mpiexec -n 4 python virtualTopology.py

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: "Open an admin Command Prompt by right-clicking on the command prompt icon and select Run as administrator."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.