Book Image

Learning Python Networking - Second Edition

By : José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington
Book Image

Learning Python Networking - Second Edition

By: José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington

Overview of this book

Network programming has always been a demanding task. With full-featured and well-documented libraries all the way up the stack, Python makes network programming the enjoyable experience it should be. Starting with a walk through of today's major networking protocols, through this book, you'll learn how to employ Python for network programming, how to request and retrieve web resources, and how to extract data in major formats over the web. You will utilize Python for emailing using different protocols, and you'll interact with remote systems and IP and DNS networking. You will cover the connection of networking devices and configuration using Python 3.7, along with cloud-based network management tasks using Python. As the book progresses, socket programming will be covered, followed by how to design servers, and the pros and cons of multithreaded and event-driven architectures. You'll develop practical clientside applications, including web API clients, email clients, SSH, and FTP. These applications will also be implemented through existing web application frameworks.
Table of Contents (19 chapters)
Free Chapter
1
Section 1: Introduction to Network and HTTP Programming
4
Section 2: Interacting with APIs, Web Scraping, and Server Scripting
9
Section 3: IP Address Manipulation and Network Automation
13
Section 4: Sockets and Server Programming

Questions

  1. What library does Scrapy use to extract content from web pages as if they were regular expressions?
  2. What XPath expression could we use to extract the images of a certain URL from which the HTML code has been extracted?
  3. What XPath expression could we use to extract the links of a certain URL from which the HTML code has been extracted?
  4. What method of the BeautifulSoup module allows you to obtain all the elements of a certain label?
  5. What basic elements at the level of files and folders can we find in a Scrapy project?
  6. In which part of our Scrapy project do we define the extraction procedure for each of the items?
  1. In which part of our Scrapy project do we define the classes that allow us to validate the data or save the extracted data in some databases?
  2. What is the main Scrapy class that allows us to define our spider?
  3. What is the main method you must implement when...