Conventions used

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: "The WebDriver class provides constructors for each browser."

A block of code is set as follows:

difficulty = difficulty_1_target/current_target difficulty_1_target = 0x00000000FFFF0000000000000000000000000000000000000000000000000000

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

COMMANDS:
list Print summary of existing accounts
new Create a new account
update Update an existing account
import Import a private key into a new account 
 

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: "If a user clicks on the Your Account option on the Home Webpage, the application will check whether they have already logged in."