Conventions

In this book, you will find a number of text styles 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: "The remove() method finds the first instance of the element (passed an argument) and removes it from the list."

A block of code is set as follows:

      try: 
         input_value = int(value) 
      except ValueError as error:  
         print("The value is invalid %s" % error)

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

    sudo pip3 install schedule

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Select the A8 Serial option from the drop-down menu."

Warnings or important notes appear in a box like this.

Tips and tricks appear like this.