Search icon Close icon
Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Checkout

Change country

Modal Close icon
Country selected Country selected
country flag Germany
Country selected
country flag Slovakia
Country selected
country flag Canada
Country selected
country flag Brazil
Country selected
country flag Singapore
Country selected
country flag Hungary
Country selected
country flag Philippines
Country selected
country flag Mexico
Country selected
country flag Thailand
Country selected
country flag Ukraine
Country selected
country flag Luxembourg
Country selected
country flag Estonia
Country selected
country flag Lithuania
Country selected
country flag Norway
Country selected
country flag Chile
Country selected
country flag United States
Country selected
country flag Great Britain
Country selected
country flag India
Country selected
country flag Spain
Country selected
country flag South Korea
Country selected
country flag Ecuador
Country selected
country flag Colombia
Country selected
country flag Taiwan
Country selected
country flag Switzerland
Country selected
country flag Indonesia
Country selected
country flag Cyprus
Country selected
country flag Denmark
Country selected
country flag Finland
Country selected
country flag Poland
Country selected
country flag Malta
Country selected
country flag Czechia
Country selected
country flag New Zealand
Country selected
country flag Austria
Country selected
country flag Turkey
Country selected
country flag France
Country selected
country flag Sweden
Country selected
country flag Italy
Country selected
country flag Egypt
Country selected
country flag Belgium
Country selected
country flag Portugal
Country selected
country flag Slovenia
Country selected
country flag Ireland
Country selected
country flag Romania
Country selected
country flag Greece
Country selected
country flag Argentina
Country selected
country flag Malaysia
Country selected
country flag South Africa
Country selected
country flag Netherlands
Country selected
country flag Bulgaria
Country selected
country flag Latvia
Country selected
country flag Australia
Country selected
country flag Japan
Country selected
country flag Russia
Country selected
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Home > Cloud & Networking > Networking > Learning Python Networking
Learning Python Networking
Learning Python Networking

Learning Python Networking: Utilize Python 3 to get network applications up and running quickly and easily

Arrow left icon
Profile Icon Samuel B Washington Profile Icon Dr. M. O. Faruque Sarker Profile Icon Sam Washington
Arrow right icon
£16.99 per month
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.7 (7 Ratings)
Paperback Jun 2015 320 pages 1st Edition
eBook
£22.99 £32.99
Paperback
£41.99
Subscription
Free Trial
Renews at £16.99p/m
Arrow left icon
Profile Icon Samuel B Washington Profile Icon Dr. M. O. Faruque Sarker Profile Icon Sam Washington
Arrow right icon
£16.99 per month
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.7 (7 Ratings)
Paperback Jun 2015 320 pages 1st Edition
eBook
£22.99 £32.99
Paperback
£41.99
Subscription
Free Trial
Renews at £16.99p/m
eBook
£22.99 £32.99
Paperback
£41.99
Subscription
Free Trial
Renews at £16.99p/m

What do you get with a Packt Subscription?

Free for first 7 days. £16.99 p/m after that. Cancel any time!
Product feature icon Unlimited ad-free access to the largest independent learning library in tech. Access this title and thousands more!
Product feature icon 50+ new titles added per month, including many first-to-market concepts and exclusive early access to books as they are being written.
Product feature icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Product feature icon Thousands of reference materials covering every tech concept you need to stay up to date.
Subscribe now
View plans & pricing
Table of content icon View table of contents Preview book icon Preview Book

Learning Python Networking

Chapter 2. HTTP and Working with the Web

The Hypertext Transfer Protocol (HTTP) is probably the most widely-used application layer protocol. It was originally developed to allow academics to share HTML documents. Nowadays, it is used as the core protocol of innumerable applications across the Internet, and it is the principle protocol of the World Wide Web.

In this chapter, we will cover the following topics:

  • The HTTP protocol structure
  • Using Python for talking to services through HTTP
  • Downloading files
  • HTTP capabilities, such as compression and cookies
  • Handling errors
  • URLs
  • The Python standard library urllib package
  • Kenneth Reitz's third-party Requests package

The urllib package is the recommended Python standard library package for HTTP tasks. The standard library also has a low-level module called http. Although this offers access to almost all aspects of the protocol, it has not been designed for everyday use. The urllib package has a simpler interface, and it deals with everything...

Request and response

HTTP is an application layer protocol, and it is almost always used on top of TCP. The HTTP protocol has been deliberately defined to use a human-readable message format, but it can still be used for transporting arbitrary bytes data.

An HTTP exchange consists of two elements. A request made by the client, which asks the server for a particular resource specified by a URL, and a response, sent by the server, which supplies the resource that the client has asked for. If the server can't provide the resource that the client has requested, then the response will contain information about the failure.

This order of events is fixed in HTTP. All interactions are initiated by the client. The server never sends anything to the client without the client explicitly asking for it.

This chapter will teach you how to use Python as an HTTP client. We will learn how to make requests to servers and then interpret their responses. We will look at writing server-side applications...

Requests with urllib

We have already seen some examples of HTTP exchanges while discussing the RFC downloaders in Chapter 1, Network Programming and Python. The urllib package is broken into several submodules for dealing with the different tasks that we may need to perform when working with HTTP. For making requests and receiving responses, we employ the urllib.request module.

Retrieving the contents of a URL is a straightforward process when done using urllib. Load your Python interpreter and do the following:

>>> from urllib.request import urlopen
>>> response = urlopen('http://www.debian.org')
>>> response
<http.client.HTTPResponse object at 0x7fa3c53059b0>
>>> response.readline()
b'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">\n'

We use the urllib.request.urlopen() function for sending a request and receiving a response for the resource at http://www.debian...

Response objects

Let's take a closer look at our response object. We can see from the preceding example that urlopen() returns an http.client.HTTPResponse instance. The response object gives us access to the data of the requested resource, and the properties and the metadata of the response. To view the URL for the response that we received in the previous section, do this:

>>> response.url
'http://www.debian.org'

We get the data of the requested resource through a file-like interface using the readline() and read() methods. We saw the readline() method in the previous section. This is how we use the read() method:

>>> response = urlopen('http://www.debian.org')
>>> response.read(50)
b'g="en">\n<head>\n  <meta http-equiv="Content-Type" c'

The read() method returns the specified number of bytes from the data. Here it's the first 50 bytes. A call to the read() method with no argument will return...

Status codes

What if we wanted to know whether anything unexpected had happened to our request? Or what if we wanted to know whether our response contained any data before we read the data out? Maybe we're expecting a large response, and we want to quickly see if our request has been successful without reading the whole response.

HTTP responses provide a means for us to do this through status codes. We can read the status code of a response by using its status attribute.

>>> response.status
200

Status codes are integers that tell us how the request went. The 200 code informs us that everything went fine.

There are a number of codes, and each one conveys a different meaning. According to their first digit, status codes are classified into the following groups:

  • 100: Informational
  • 200: Success
  • 300: Redirection
  • 400: Client error
  • 500: Server error

A few of the more frequently encountered codes and their messages are as follows:

  • 200: OK
  • 404: Not Found
  • 500: Internal Server Error

The official...

Handling problems

Status codes help us to see whether our response was successful or not. Any code in the 200 range indicates a success, whereas any code in either the 400 range or the 500 range indicates failure.

Status codes should always be checked so that our program can respond appropriately if something goes wrong. The urllib package helps us in checking the status codes by raising an exception if it encounters a problem.

Let's go through how to catch these and handle them usefully. For this try the following command block:

>>> import urllib.error
>>> from urllib.request import urlopen
>>> try:
...   urlopen('http://www.ietf.org/rfc/rfc0.txt')
... except urllib.error.HTTPError as e:
...   print('status', e.code)
...   print('reason', e.reason)
...   print('url', e.url)
...
status: 404
reason: Not Found
url: http://www.ietf.org/rfc/rfc0.txt

Here we've requested RFC 0, which doesn't exist. So the server has...

Request and response

HTTP is an application layer protocol, and it is almost always used on top of TCP. The HTTP protocol has been deliberately defined to use a human-readable message format, but it can still be used for transporting arbitrary bytes data.

An HTTP exchange consists of two elements. A request made by the client, which asks the server for a particular resource specified by a URL, and a response, sent by the server, which supplies the resource that the client has asked for. If the server can't provide the resource that the client has requested, then the response will contain information about the failure.

This order of events is fixed in HTTP. All interactions are initiated by the client. The server never sends anything to the client without the client explicitly asking for it.

This chapter will teach you how to use Python as an HTTP client. We will learn how to make requests to servers and then interpret their responses. We will look at writing server-side applications in Chapter...

Requests with urllib

We have already seen some examples of HTTP exchanges while discussing the RFC downloaders in Chapter 1, Network Programming and Python. The urllib package is broken into several submodules for dealing with the different tasks that we may need to perform when working with HTTP. For making requests and receiving responses, we employ the urllib.request module.

Retrieving the contents of a URL is a straightforward process when done using urllib. Load your Python interpreter and do the following:

>>> from urllib.request import urlopen
>>> response = urlopen('http://www.debian.org')
>>> response
<http.client.HTTPResponse object at 0x7fa3c53059b0>
>>> response.readline()
b'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">\n'

We use the urllib.request.urlopen() function for sending a request and receiving a response for the resource at http://www.debian.org, in this case an HTML page. We...

Response objects

Let's take a closer look at our response object. We can see from the preceding example that urlopen() returns an http.client.HTTPResponse instance. The response object gives us access to the data of the requested resource, and the properties and the metadata of the response. To view the URL for the response that we received in the previous section, do this:

>>> response.url
'http://www.debian.org'

We get the data of the requested resource through a file-like interface using the readline() and read() methods. We saw the readline() method in the previous section. This is how we use the read() method:

>>> response = urlopen('http://www.debian.org')
>>> response.read(50)
b'g="en">\n<head>\n  <meta http-equiv="Content-Type" c'

The read() method returns the specified number of bytes from the data. Here it's the first 50 bytes. A call to the read() method with no argument will return all the data in one go.

The file-like interface is limited...

Status codes

What if we wanted to know whether anything unexpected had happened to our request? Or what if we wanted to know whether our response contained any data before we read the data out? Maybe we're expecting a large response, and we want to quickly see if our request has been successful without reading the whole response.

HTTP responses provide a means for us to do this through status codes. We can read the status code of a response by using its status attribute.

>>> response.status
200

Status codes are integers that tell us how the request went. The 200 code informs us that everything went fine.

There are a number of codes, and each one conveys a different meaning. According to their first digit, status codes are classified into the following groups:

  • 100: Informational

  • 200: Success

  • 300: Redirection

  • 400: Client error

  • 500: Server error

A few of the more frequently encountered codes and their messages are as follows:

  • 200: OK

  • 404: Not Found

  • 500: Internal Server Error

The official...

Handling problems

Status codes help us to see whether our response was successful or not. Any code in the 200 range indicates a success, whereas any code in either the 400 range or the 500 range indicates failure.

Status codes should always be checked so that our program can respond appropriately if something goes wrong. The urllib package helps us in checking the status codes by raising an exception if it encounters a problem.

Let's go through how to catch these and handle them usefully. For this try the following command block:

>>> import urllib.error
>>> from urllib.request import urlopen
>>> try:
...   urlopen('http://www.ietf.org/rfc/rfc0.txt')
... except urllib.error.HTTPError as e:
...   print('status', e.code)
...   print('reason', e.reason)
...   print('url', e.url)
...
status: 404
reason: Not Found
url: http://www.ietf.org/rfc/rfc0.txt

Here we've requested RFC 0, which doesn't exist. So the server has returned a 404 status code, and urllib has spotted this...

HTTP headers

Requests, and responses are made up of two main parts, headers and a body. We briefly saw some HTTP headers when we used our TCP RFC downloader in Chapter 1, Network Programming and Python. Headers are the lines of protocol-specific information that appear at the beginning of the raw message that is sent over the TCP connection. The body is the rest of the message. It is separated from the headers by a blank line. The body is optional, its presence depends on the type of request or response. Here's an example of an HTTP request:

GET / HTTP/1.1
Accept-Encoding: identity
Host: www.debian.com
Connection: close
User-Agent: Python-urllib/3.4

The first line is called the request line. It is comprised of the request method, which is GET in this case, the path to the resource, which is / here, and the HTTP version, 1.1. The rest of the lines are request headers. Each line is comprised of a header name followed by a colon and a header value. The request in the preceding output only contains...

Customizing requests

To make use of the functionality that headers provide, we add headers to a request before sending it. To do this, we can't just use urlopen(). We need to follow these steps:

  • Create a Request object

  • Add headers to the request object

  • Use urlopen() to send the request object

We're going to learn how to customize a request for retrieving a Swedish version of the Debian home page. We will use the Accept-Language header, which tells the server our preferred language for the resource it returns. Note that not all servers hold versions of resources in multiple languages, so not all servers will respond to Accept-LanguageLinux home page.

First, we create a Request object:

>>> from urllib.request import Request
>>> req = Request('http://www.debian.org')

Next we add the header:

>>> req.add_header('Accept-Language', 'sv')

The add_header() method takes the name of the header and the contents of the header as arguments. The Accept-Language header takes two-letter...

Content negotiation

Content compression with the Accept-Encoding header and language selection with the Accept-Language header are examples of content negotiation, where the client specifies its preferences regarding the format and the content of the requested resource. The following headers can also be used for this:

  • Accept: For requesting a preferred file format

  • Accept-Charset: For requesting the resource in a preferred character set

There are additional aspects to the content negotiation mechanism, but because it's inconsistently supported and it can become quite involved, we won't be covering it in this chapter. RFC 7231 contain all the details that you need. Take a look at sections such as 3.4, 5.3, 6.4.1, and 6.5.6, if you find that your application requires this.

Content types

HTTP can be used as a transport for any type of file or data. The server can use the Content-Type header in a response to inform the client about the type of data that it has sent in the body. This is the primary...

User agents

Another request header worth knowing about is the User-Agent header. Any client that communicates using HTTP can be referred to as a user agent. RFC 7231 suggests that user agents should use the User-Agent header to identify themselves in every request. What goes in there is up to the software that makes the request, though it usually comprises a string that identifies the program and version, and possibly the operating system and the hardware that it's running on. For example, the user agent for my current version of Firefox is shown here:

Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20140722 Firefox/24.0 Iceweasel/24.7.0

Although it has been broken over two lines here, it is a single long string. As you can probably decipher, I'm running Iceweasel (Debian's version of Firefox) version 24 on a 64-bit Linux system. User agent strings aren't intended for identifying individual users. They only identify the product that was used for making the request.

We can view the user agent...

Cookies

A cookie is a small piece of data that the server sends in a Set-Cookie header as a part of the response. The client stores cookies locally and includes them in any future requests that are sent to the server.

Servers use cookies in various ways. They can add a unique ID to them, which enables them to track a client as it accesses different areas of a site. They can store a login token, which will automatically log the client in, even if the client leaves the site and then accesses it later. They can also be used for storing the client's user preferences or snippets of personalizing information, and so on.

Cookies are necessary because the server has no other way of tracking a client between requests. HTTP is called a stateless protocol. It doesn't contain an explicit mechanism for a server to know for sure that two requests have come from the same client. Without cookies to allow the server to add some uniquely identifying information to the requests, things such as shopping carts...

Redirects

Sometimes servers move their content around. They also make some content obsolete and put up new stuff in a different location. Sometimes they'd like us to use the more secure HTTPS protocol instead of HTTP. In all these cases, they may get traffic that asks for the old URLs, and in all these cases they'd probably prefer to be able to automatically send visitors to the new ones.

The 300 range of HTTP status codes is designed for this purpose. These codes indicate to the client that further action is required on their part to complete the request. The most commonly encountered action is to retry the request at a different URL. This is called a redirect.

We'll learn how this works when using urllib. Let's make a request:

>>> req = Request('http://www.gmail.com')
>>> response = urlopen(req)

Simple enough, but now, look at the URL of the response:

>>> response.url
'https://accounts.google.com/ServiceLogin?service=mail&passive=true&r m=false...'

This...

URLs

Uniform Resource Locators, or URLs are fundamental to the way in which the web operates, and they have been formally described in RFC 3986. A URL represents a resource on a given host. How URLs map to the resources on the remote system is entirely at the discretion of the system admin. URLs can point to files on the server, or the resources may be dynamically generated when a request is received. What the URL maps to though doesn't matter as long as the URLs work when we request them.

URLs are comprised of several sections. Python uses the urllib.parse module for working with URLs. Let's use Python to break a URL into its component parts:

>>> from urllib.parse import urlparse
>>> result = urlparse('http://www.python.org/dev/peps')
>>> result
ParseResult(scheme='http', netloc='www.python.org', path='/dev/peps', params='', query='', fragment='')

The urllib.parse.urlparse() function interprets our URL and recognizes http as the scheme, https://www.python.org...

Left arrow icon

Page 1 of 18

Right arrow icon

Description

If you're a Python developer or a system administrator with Python experience and you're looking to take your first steps in network programming, then this book is for you. Basic knowledge of Python is assumed.

What you will learn

  • Develop an understanding of network stacks and the power of encapsulation
  • Design highperformance network server applications
  • Implement socketbased network applications using asynchronous models
  • Build client applications for major web APIs, including Amazon S3 and Twitter
  • Interact with email servers using SMTP, POP3, and IMAP protocols
  • Deal with remote network servers using SSH, FTP, SNMP, SMB/CIFS, and LDAP protocols
  • Work with IP addresses including GeoIP lookups
  • Download objects from the Web and craft custom HTTP requests with urllib and the Requests library

Product Details

Country selected
Publication date, Length, Edition, Language, ISBN-13
Publication date : Jun 17, 2015
Length: 320 pages
Edition : 1st
Language : English
ISBN-13 : 9781784396008
Category :
Cloud & Networking
Languages :
Python
Concepts :
Networking

What do you get with a Packt Subscription?

Free for first 7 days. £16.99 p/m after that. Cancel any time!
Product feature icon Unlimited ad-free access to the largest independent learning library in tech. Access this title and thousands more!
Product feature icon 50+ new titles added per month, including many first-to-market concepts and exclusive early access to books as they are being written.
Product feature icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Product feature icon Thousands of reference materials covering every tech concept you need to stay up to date.
Subscribe now
View plans & pricing

Product Details

Publication date : Jun 17, 2015
Length: 320 pages
Edition : 1st
Language : English
ISBN-13 : 9781784396008
Category :
Cloud & Networking
Languages :
Python
Concepts :
Networking

Packt Subscriptions

See our plans and pricing
Modal Close icon
£16.99 billed monthly
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Simple pricing, no contract
START FREE TRIAL
BUY NOW
£169.99 billed annually
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just £5 each
Feature tick icon Exclusive print discounts
START FREE TRIAL
BUY NOW
£234.99 billed in 18 months
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just £5 each
Feature tick icon Exclusive print discounts
START FREE TRIAL
BUY NOW

Frequently bought together

Learning Penetration Testing with Python
Learning Penetration Testing with Python
Read more
Sep 2015 314 pages
Full star icon 4.4 (7)
eBook
eBook
  • eBook eBook £22.99
  • Paperback Paperback £41.99
£22.99 £32.99
£41.99
Learning Python Networking
Learning Python Networking
Read more
Jun 2015 320 pages
Full star icon 3.7 (7)
eBook
eBook
  • eBook eBook £22.99
  • Paperback Paperback £41.99
£22.99 £32.99
£41.99
Python Web Penetration Testing Cookbook
Python Web Penetration Testing Cookbook
Read more
Jun 2015 224 pages
Full star icon 3.5 (4)
eBook
eBook
  • eBook eBook £20.98
  • Paperback Paperback £36.99
£20.98 £29.99
£36.99
Stars icon
Total £ 120.97
Learning Penetration Testing with Python
£41.99
Learning Python Networking
£41.99
Python Web Penetration Testing Cookbook
£36.99
Total £ 120.97 Stars icon

Table of Contents

11 Chapters
1. Network Programming and Python Chevron down icon Chevron up icon
1. Network Programming and Python
An introduction to TCP/IP networks
Network programming with Python
Breaking a few eggs
Summary
2. HTTP and Working with the Web Chevron down icon Chevron up icon
2. HTTP and Working with the Web
Request and response
Requests with urllib
Response objects
Status codes
Handling problems
HTTP headers
Customizing requests
Content negotiation
User agents
Cookies
Redirects
URLs
HTTP methods
Formal inspection
HTTPS
The Requests library
Summary
3. APIs in Action Chevron down icon Chevron up icon
3. APIs in Action
Getting started with XML
The Amazon S3 API
JSON
The Twitter API
HTML and screen scraping
With great power...
Summary
4. Engaging with E-mails Chevron down icon Chevron up icon
4. Engaging with E-mails
E-mail terminologies
Sending e-mails with SMTP
Sending e-mails securely with TLS
Retrieving e-mails by using POP3 with poplib
Retrieving e-mails by using IMAP with imaplib
Sending e-mail attachments
Sending e-mails via the logging module
Summary
5. Interacting with Remote Systems Chevron down icon Chevron up icon
5. Interacting with Remote Systems
Secure shell – access using Python
Transferring files through SFTP
Transferring files with FTP
Fetching Simple Network Management Protocol data
Reading Light-weight Directory Access Protocol data
Sharing files with SAMBA
Summary
6. IP and DNS Chevron down icon Chevron up icon
6. IP and DNS
Retrieving the network configuration of a local machine
Manipulating IP addresses
GeoIP look-ups
NTP clients
Summary
7. Programming with Sockets Chevron down icon Chevron up icon
7. Programming with Sockets
Basics of sockets
Working with TCP sockets
Working with UDP sockets
TCP port forwarding
A non-blocking socket I/O
Securing sockets with TLS/SSL
Creating a custom SSL client/server
Summary
8. Client and Server Applications Chevron down icon Chevron up icon
8. Client and Server Applications
Client and server
An echo protocol
A simple echo server
A simple echo client
Concurrent I/O
Multithreading and multiprocessing
A multithreaded echo server
Designing a chat server
A chat protocol
Handling data on persistent connections
A multithreaded chat server
A multithreaded chat client
Event-driven servers
A low-level event-driven chat server
Frameworks
An eventlet-based chat server
An asyncio-based chat server
More on frameworks
Taking our servers forward
Summary
9. Applications for the Web Chevron down icon Chevron up icon
9. Applications for the Web
What's in a web server?
Python and the Web
Flask – a microframework
Hosting Python web applications
Hosting in practice
Summary
A. Working with Wireshark Chevron down icon Chevron up icon
A. Working with Wireshark
Packet sniffers
Wireshark
Index Chevron down icon Chevron up icon
Index

Recommendations for you

Left arrow icon
Mastering Terraform
Mastering Terraform
Read more
Jul 2024 494 pages
Full star icon 5 (17)
eBook
eBook
  • eBook eBook £20.98
  • Paperback Paperback £37.99
£20.98 £29.99
£37.99
Building Resilient Architectures on AWS
Building Resilient Architectures on AWS
Read more
Dec 2024 346 pages
eBook
eBook
  • eBook eBook £17.99
  • Paperback Paperback £33.99
£17.99 £26.99
£33.99
Platform Engineering for Architects
Platform Engineering for Architects
Read more
Oct 2024 374 pages
eBook
eBook
  • eBook eBook £20.98
  • Paperback Paperback £37.99
£20.98 £29.99
£37.99
Kubernetes – An Enterprise Guide
Kubernetes – An Enterprise Guide
Read more
Aug 2024 682 pages
Full star icon 5 (11)
eBook
eBook
  • eBook eBook £22.99
  • Paperback Paperback £41.99
£22.99 £32.99
£41.99
Modern Network Observability
Modern Network Observability
Read more
Oct 2024 506 pages
Full star icon 4 (5)
eBook
eBook
  • eBook eBook £20.98
  • Paperback Paperback £37.99
£20.98 £29.99
£37.99
AWS Cloud Projects
AWS Cloud Projects
Read more
Oct 2024 266 pages
eBook
eBook
  • eBook eBook £15.99
  • Paperback Paperback £26.99
£15.99 £23.99
£26.99
Cloud Observability with Azure Monitor
Cloud Observability with Azure Monitor
Read more
Nov 2024 368 pages
eBook
eBook
  • eBook eBook £17.99
  • Paperback Paperback £33.99
£17.99 £26.99
£33.99
Solutions Architect's Handbook
Solutions Architect's Handbook
Read more
Mar 2024 578 pages
Full star icon 4.7 (54)
eBook
eBook
  • eBook eBook £24.99
  • Paperback Paperback £44.99
£24.99 £35.99
£44.99
Cloud-Native - Microservices, Kubernetes, Service Mesh, CI/CD
Cloud-Native - Microservices, Kubernetes, Service Mesh, CI/CD
Read more
Nov 2024 24hrs
Video
Video
  • Video Video £59.99
£59.99
Managing Kubernetes Resources Using Helm
Managing Kubernetes Resources Using Helm
Read more
Sep 2022 310 pages
Full star icon 5 (3)
eBook
eBook
  • eBook eBook £21.99
  • Paperback Paperback £38.99
£21.99 £31.99
£38.99
Right arrow icon

Customer reviews

Top Reviews
  • Top Reviews
  • Most Recent
Rating distribution
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.7
(7 Ratings)
5 star 42.9%
4 star 14.3%
3 star 28.6%
2 star 0%
1 star 14.3%
Filter icon Filter
Top Reviews
  • Top Reviews
  • Most Recent

Filter reviews by

homie Jan 10, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Great book for those who are new to Network programming.
Amazon Verified review Amazon
Keep Learning Nov 19, 2017
Full star icon Full star icon Full star icon Full star icon Full star icon 5
If you are not clear/scared/confused about the topics revolving around Networking (IP Address, Protocols, Sockets, Security etc.) then this book will make sure you are not the same person after completing it.A great introduction to Networking for any Coder. It creates a good foundation, the topics covered are sufficient for any Mobile or WebDeveloper or any other developer to get the basics correct. Later if required they can explore more from other resources.Python is always are great language to learn any new topic or domain because1. Python is easy and fun.2. Python has very good set of libraries to make your life easy.
Amazon Verified review Amazon
Timoteo Sep 23, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is a great introduction to network programming. I have no experience in the topic, but I felt the author walked through each topic very thoroughly. I would highly recommend this book for anyone interested in networking. I do recommend being at an intermediate-level python programmer, as it will be easy to follow the programming. I will buy his companion networking cookbook as well.
Amazon Verified review Amazon
Nick K Jan 05, 2016
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Sure I thought it's quite useful. For specialist knowledge I needed a specialist book. This does just that. Highly recommended.
Amazon Verified review Amazon
Ryan Jun 25, 2018
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Most of the content is okay, I guessBut you're going to spend most of your time making the codefrom the book actually compile. Also, the errata sucks and the author is apparentlynot available to verify errata submissions.meh..
Amazon Verified review Amazon

People who bought this also bought

Left arrow icon
AWS for Solutions Architects
AWS for Solutions Architects
Read more
Apr 2023 692 pages
Full star icon 4.3 (64)
eBook
eBook
  • eBook eBook £22.99
  • Paperback Paperback £41.99
£22.99 £32.99
£41.99
Ansible for Real-Life Automation
Ansible for Real-Life Automation
Read more
Sep 2022 480 pages
Full star icon 3.9 (7)
eBook
eBook
  • eBook eBook £17.99
  • Paperback Paperback £31.99
£17.99 £25.99
£31.99
Mastering Kubernetes
Mastering Kubernetes
Read more
Jun 2023 746 pages
Full star icon 4.5 (47)
eBook
eBook
  • eBook eBook £22.99
  • Paperback Paperback £41.99
£22.99 £32.99
£41.99
The Ultimate Docker Container Book
The Ultimate Docker Container Book
Read more
Aug 2023 626 pages
Full star icon 4.5 (11)
eBook
eBook
  • eBook eBook £20.98
  • Paperback Paperback £37.99
£20.98 £29.99
£37.99
Mastering Ubuntu Server
Mastering Ubuntu Server
Read more
Sep 2022 584 pages
Full star icon 4.7 (40)
eBook
eBook
  • eBook eBook £22.99
  • Paperback Paperback £41.99
£22.99 £32.99
£41.99
Right arrow icon

About the 3 authors

Left arrow icon
Profile icon Samuel B Washington
Samuel B Washington
Sam Washington currently works at University College London as a systems administrator in the platform integration team of the central IT department, supporting a variety of web hosting and network services. He enjoys the daily challenges of managing the demands of full-stack enterprise web applications and looking for ways to employ new technologies to improve services and workflows. He has been using Python for professional and personal projects for over 10 years.
Read more
See other products by Samuel B Washington
Profile icon Dr. M. O. Faruque Sarker
Dr. M. O. Faruque Sarker
Dr. M. O. Faruque Sarker is a software architect based in London; he has shaped various Linux and open source software solutions mainly on cloud computing platforms for various institutions. Over the past 10 years, he has led numerous Python software development and cloud infrastructure automation projects. In 2009, he started using Python and shepherded a fleet of miniature E-puck robots at the University of South Wales, Newport, UK. Later, he was invited to work on the Google Summer of Code (2009/2010) programs to contribute to the BlueZ and Tahoe-LAFS open source projects. He is the author of Python Network Programming Cookbook, Packt Publishing and received his PhD in multirobot systems at the University of South Wales.
Read more
See other products by Dr. M. O. Faruque Sarker
Profile icon Sam Washington
Sam Washington
Github icon
Sam Washington currently works at University College London as a systems administrator in the platform integration team of the central IT department, supporting a variety of web hosting and network services. He enjoys the daily challenges of managing the demands of full-stack enterprise web applications and looking for ways to employ new technologies to improve services and workflows. He has been using Python for professional and personal projects for over 10 years.
Read more
See other products by Sam Washington
Right arrow icon
Get free access to Packt library with over 7500+ books and video courses for 7 days!
Start Free Trial

FAQs

What is included in a Packt subscription? Chevron down icon Chevron up icon

A subscription provides you with full access to view all Packt and licnesed content online, this includes exclusive access to Early Access titles. Depending on the tier chosen you can also earn credits and discounts to use for owning content

How can I cancel my subscription? Chevron down icon Chevron up icon

To cancel your subscription with us simply go to the account page - found in the top right of the page or at https://subscription.packtpub.com/my-account/subscription - From here you will see the ‘cancel subscription’ button in the grey box with your subscription information in.

What are credits? Chevron down icon Chevron up icon

Credits can be earned from reading 40 section of any title within the payment cycle - a month starting from the day of subscription payment. You also earn a Credit every month if you subscribe to our annual or 18 month plans. Credits can be used to buy books DRM free, the same way that you would pay for a book. Your credits can be found in the subscription homepage - subscription.packtpub.com - clicking on ‘the my’ library dropdown and selecting ‘credits’.

What happens if an Early Access Course is cancelled? Chevron down icon Chevron up icon

Projects are rarely cancelled, but sometimes it's unavoidable. If an Early Access course is cancelled or excessively delayed, you can exchange your purchase for another course. For further details, please contact us here.

Where can I send feedback about an Early Access title? Chevron down icon Chevron up icon

If you have any feedback about the product you're reading, or Early Access in general, then please fill out a contact form here and we'll make sure the feedback gets to the right team. 

Can I download the code files for Early Access titles? Chevron down icon Chevron up icon

We try to ensure that all books in Early Access have code available to use, download, and fork on GitHub. This helps us be more agile in the development of the book, and helps keep the often changing code base of new versions and new technologies as up to date as possible. Unfortunately, however, there will be rare cases when it is not possible for us to have downloadable code samples available until publication.

When we publish the book, the code files will also be available to download from the Packt website.

How accurate is the publication date? Chevron down icon Chevron up icon

The publication date is as accurate as we can be at any point in the project. Unfortunately, delays can happen. Often those delays are out of our control, such as changes to the technology code base or delays in the tech release. We do our best to give you an accurate estimate of the publication date at any given time, and as more chapters are delivered, the more accurate the delivery date will become.

How will I know when new chapters are ready? Chevron down icon Chevron up icon

We'll let you know every time there has been an update to a course that you've bought in Early Access. You'll get an email to let you know there has been a new chapter, or a change to a previous chapter. The new chapters are automatically added to your account, so you can also check back there any time you're ready and download or read them online.

I am a Packt subscriber, do I get Early Access? Chevron down icon Chevron up icon

Yes, all Early Access content is fully available through your subscription. You will need to have a paid for or active trial subscription in order to access all titles.

How is Early Access delivered? Chevron down icon Chevron up icon

Early Access is currently only available as a PDF or through our online reader. As we make changes or add new chapters, the files in your Packt account will be updated so you can download them again or view them online immediately.

How do I buy Early Access content? Chevron down icon Chevron up icon

Early Access is a way of us getting our content to you quicker, but the method of buying the Early Access course is still the same. Just find the course you want to buy, go through the check-out steps, and you’ll get a confirmation email from us with information and a link to the relevant Early Access courses.

What is Early Access? Chevron down icon Chevron up icon

Keeping up to date with the latest technology is difficult; new versions, new frameworks, new techniques. This feature gives you a head-start to our content, as it's being created. With Early Access you'll receive each chapter as it's written, and get regular updates throughout the product's development, as well as the final course as soon as it's ready.We created Early Access as a means of giving you the information you need, as soon as it's available. As we go through the process of developing a course, 99% of it can be ready but we can't publish until that last 1% falls in to place. Early Access helps to unlock the potential of our content early, to help you start your learning when you need it most. You not only get access to every chapter as it's delivered, edited, and updated, but you'll also get the finalized, DRM-free product to download in any format you want when it's published. As a member of Packt, you'll also be eligible for our exclusive offers, including a free course every day, and discounts on new and popular titles.