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Build 10 Network Applications with Python

Learn Python from SCRATCH! Build 10 Network Applications using Python. Upgrade your Network Engineering skills today!

Created byMihai Cătălin Teodosiu

Last updated 7/2026

English

English [Auto],Spanish [Auto],

What you'll learn

Master all the Python 3 key concepts starting from scratch. No prior Python knowledge is required!
Apply your new Python 3 skills to build various tools for network interaction and make your job easier.
Use Python 3 for connecting via SSH to any network device and reading/writing configuration from multiple devices simultaneously.
Use Python 3 for establishing SSH sessions to network devices, extract parameters like CPU utilization and build real-time graphs for performance monitoring.
Use Python 3 for building a basic packet sniffer, capturing and analyzing network packets (ARP, ICMP, BOOTP) and saving packet data to a log file.
Use Python 3 for building 5 additional network tools involving technologies such as SNMPv3, NMAP, DHCP Servers, LLDP and OSPF.
Use Python 3 and specialized modules and commands to connect to and query network devices via an intermediary, remote Linux server.
Get the full Python 3 code of 10 amazing network applications and customize each of them according to your networking needs.
Ask for a raise at your current job or apply for a better position using the network automation skills gained from this course.

Course content

31 sections • 265 lectures • 15h 51m total length

Quick Introductory Note1:20
Follow the lectures in order and don't skip videos, notebooks, quizzes, or coding exercises for learning experience in building 10 network applications with Python, using the Q&A area for troubleshooting.
Just starting out in programming? Read this!0:21
Thinking About Your Next Tech Role?0:33
Course FAQ7:08

How to Install Python 3 on Windows2:57
Install Python 3 on Windows by downloading Python 3.7.1 from python.org, adding Python 3.7 to path, and validating the installation with the Windows command line using the Python interpreter.
How to Install Python 3 on macOS2:35
Learn how to install Python 3 on macOS using Homebrew, verify existing Python 2.7, install Apple's command line developer tools, and confirm Python 3.7.3 is now available.
UPDATE! Python Versions0:19
The Python Interpreter & IDLE in Windows3:19
Learn the python interpreter and idle in Windows, compare command line with idle, and configure font size, four-space indentation, and shortcuts for multiple sessions.
The Python Interpreter & IDLE in macOS2:35
Access the Python interpreter and Idle on macOS via the terminal with python3 and idle3, address the TCL TK warning, and explore PyCharm, IPython, and Jupyter Notebook as IDE options.
Python 3 Basics - Scripts in Windows3:58
Learn how a Python script is a text file saved with a .py extension and run from the Windows command line, with editors like Notepad Plus Plus used for coding.
UPDATE! Saving a Python script in Notepad++0:23
Python 3 Basics - Scripts in macOS4:21
Learn how to create and run Python scripts on macOS by saving code as a .py file with any text editor, then running it with python3 to print Hello, Python.
Python 3 - Reasons for the 'No such file or directory' error (or similar)5:07
Discover common causes of the 'no such file or directory' error when running Python scripts on Windows command line, including path, .py extension, Python 3, and spaces or quotes.
Python 3 Basics - User Input3:57
Learn to capture user input in Python using the input() function, store it in a variable, and print it, enabling interactive menus and simple command prompts.
Notebook - User Input0:07
User Input - Quiz
Python 3 Basics - Variables6:19
Learn how Python variables act as memory locations to store values, with automatic declaration, the assignment operator, multiple assignments, and naming rules.
Notebook - Variables0:03
Python 3 Basics - Keywords0:09
Python 3 - Data Types1:51
Explore Python 3 data types, including strings, numbers, booleans, lists, sets, frozen sets, tuples, ranges, dictionaries, and non-type, and distinguish mutable from immutable types.
Python 3 Basics - Quiz

Why learn all the Python topics below before building the network apps?3:04
Learn Python from scratch by mastering core concepts—data types, variables, conditionals, loops, functions, modules, strings, methods, arguments, and string formatting—before tackling network apps like ping scripts.
Python 3 Strings - Introduction6:57
Define strings as character sequences and show assigning with double, single, or triple quotes; use backslashes to escape new lines and index from zero or negative indices with Len.
Python 3 Strings - Methods8:54
Explore essential Python string methods, including index, count, find, lower, upper, strip, replace, split, and join, and understand immutability and start with and ends with checks.
Python 3 Strings - Operators & Formatting7:23
Master Python 3 strings by applying concatenation with the plus operator, repetition with the multiplication operator, in and not in checks, and formatting with percent and format methods, string slices.
Python 3 Strings - Formatting Using F-strings2:25
Discover f-strings, Python's formatted string literals from Python 3.6 via Pep 458, and learn to embed variables and expressions using curly braces, including methods like lower().
Python 3 Strings - Slices7:42
Master Python 3 string slices to extract parts of strings and sequences, using start and end indices with end not included, negative indexes, and a step to skip or reverse.
Python 3 Strings - Slicing Using a Step4:08
Master Python string slicing using start, stop, and step to extract characters, such as even digits with a step of two and odd digits from index one.
Notebook - Strings2:32
Strings - Quiz

Python 3 Numbers - Math Operators6:15
Explores integers and floating point numbers in Python 3, covering arithmetic and comparison operators, precedence, and type conversions with int and float, plus functions like abs, max, min, and pow.
Notebook - Numbers and Math Operators0:46
Numbers - Quiz
Python 3 Booleans - Logical Operators5:58
Learn how Python booleans define true and false, compare values with == and other operators, and combine results with and, or, not, while exploring truthiness and the bool() function.
Notebook - Booleans and Logical Operators0:38
Booleans - Quiz

Python 3 Lists - Introduction3:42
Discover Python lists as mutable sequences enclosed in square brackets, holding elements of any type. Master indexing, len, slicing, and updating list elements, including creating an empty list.
Python 3 Lists - Methods8:27
Explore how to manage Python lists and list elements with max, min, append, remove, insert, extend, index, count, sort, reverse, and the sorted function; cover concatenate and repetition, and slicing.
Python 3 Lists - Slices5:40
Master Python list slicing by using start and end indices with colons, including negative indices, all elements, and range steps to skip or reverse elements.
Notebook - Lists1:32
Lists - Quiz

Python 3 Sets - Introduction3:21
Discover how Python sets provide an unordered collection of unique elements, remove duplicates, support add and remove, and check membership with in and not in.
Python 3 Sets - Methods2:51
Explore Python set methods by using intersection, difference, and union to compare two sets, then apply pop and clear to manage elements.
Python 3 Sets - Frozensets3:03
Discover frozen sets, the immutable form of Python sets, which cannot be modified but support union, intersection, and difference; create frozensets from lists and use them as dictionary keys.
Notebook - Sets and Frozensets1:08
Sets - Quiz

Python 3 Tuples - Introduction4:48
Explore Python tuples as immutable, ordered sequences with indexing. Learn single-element syntax, tuple packing and unpacking, and error handling for mismatched lengths.
Python 3 Tuples - Tuples vs. Lists2:50
Compare tuples and lists by immutability, fixed versus variable length, syntax with parentheses versus square brackets, and the number of available methods.
Python 3 Tuples - Methods3:25
Learn to perform common operations on Python tuples, including len, min, max, concatenation, multiplication, indexing, slicing, membership tests with in and not in, and del to delete.
Notebook - Tuples0:51
Tuples - Quiz

Python 3 Dictionaries - Introduction3:11
Explore dictionaries, Python's unordered collections of key-value pairs enclosed in curly braces; learn keys must be unique and immutable, while values can be any type, and dictionaries are mutable.
Python 3 Dictionaries - Methods6:25
Access, add, update, and delete dictionary entries by key; use len and membership checks, and explore keys, values, items, and their order and types.
Python 3 - Conversions Between Data Types6:51
Explore Python data type conversions, turning numbers into strings and strings into numbers with str, int, and float, and switch among lists, tuples, and sets using bin, hex, and int.
Notebook - Dictionaries and Conversions Between Data Types0:50
Dictionaries - Quiz

Python 3 Conditionals - If / Elif / Else15:20
Explore how Python evaluates if, elif, and else conditions using indentation to define code blocks, colons to signal blocks, and clear flow from true expressions to alternatives.
Notebook - If / Elif / Else Conditionals0:33
Python 3 Loops - For / For-Else8:42
Learn how to use Python 3 for loops to iterate over lists, strings, and ranges, including for-else, index-based access, and the enumerate function.
Notebook - For / For-Else Loops0:25
Python 3 Loops - While / While-Else6:05
Learn how while loops differ from for loops in python, how to avoid infinite loops, and how while true supports interactive menus and else blocks.
Notebook - While / While-Else Loops0:17
Python 3 Nesting - If / For / While10:10
Master nesting with if, for, and while statements to control logic in Python. Understand indentation and readability, and explore nested for and while loops with practical examples.
Notebook - Nesting0:40
Python 3 - Break / Continue / Pass7:40
Learn how break, continue, and pass govern Python loops. Break ends the innermost loop when a condition triggers; continue skips to the next iteration, and pass serves as a placeholder.
Notebook - Break / Continue / Pass0:45
Python 3 - Exceptions2:27
Learn how Python 3 distinguishes syntax errors from runtime exceptions in building network applications, with name errors and zero division examples, and how Python reports the exact line causing issue.
Python 3 - Try / Except / Else / Finally9:42
Learn to handle Python 3 exceptions with try/except blocks, multiple except clauses, and else and finally sections, including zero division errors and ensuring smooth program flow.
Notebook - Try / Except / Else / Finally0:33
Conditionals and Loops - Quiz

Requirements

No prior Python knowledge is required! This training teaches you everything, from scratch.
You should have a great desire to learn Python programming and do it in a hands-on fashion, without having to watch countless videos filled with slides and theory.
You should already be familiar with networking concepts like: Switching, TCP/IP, CLI, SSHv2, Telnet, OSI Layers.
You are going to use only free software throughout the course: Python, VirtualBox, Arista vEOS, Atom, Notepad++.
All you need is a decent PC or laptop (2GHz+ CPU, 16GB RAM) and an Internet connection to download the free tools.
Preferably, you should have a Windows OS to work on, to be fully synchronized with the course content.

Description

COURSE STATUS: LEGACY

This course is no longer being maintained, starting January 1st, 2026.

Although the content still brings real value, updates and support have been discontinued.

15+ hours of Python content designed for Network Engineers.
Full Python applications, quizzes and notebooks are included.
Python Cheat Sheet and 200+ pages PDF E-book are included.
Udemy Bestselling Instructor with THOUSANDS of 5* reviews.
Over 100,000 satisfied students across several e-learning platforms.
CERTIFICATE of COMPLETION is also included at the end of the course.

"Have finished 35% of the course, so far it's the best Python-for-network-engineer course I have ever attended, fundamental topics are well demonstrated and explained, I strongly recommend this course to any network engineers who want to master Python in a relatively short period of time." by Parry Wang

What others have to say about my Python courses?

Before you read what I have to say, see what my students are saying about my courses:

"What an incredible value and learning experience!" by Sean A.
"Excellent material. Kudos to a great instructor with a vast level of creativity." by Anthony W.
"I can say this man is going on smoothly and perfectly, explaining in the most empirical/foundational way." by Kolapo A.

What's this course all about?

Python Network Programming course aimed not only at network professionals, but at anyone having little or no experience in Python coding or network automation and a great desire to start learning Python from scratch.

This hands-on Python Network Programming training takes you from "Hello World!" to building 10 network applications with Python in no time.

You will learn Python concepts which are relevant to your networking job and build some amazing network tools:

Introduction - What's This Course All About?
Python - Basics
Python - Strings
Python - Numbers and Booleans
Python - Lists
Python - Sets
Python - Tuples
Python - Ranges
Python - Dictionaries
Python - Conditionals, Loops and Exceptions
Python - Functions and Modules
Python - File Operations
Python - Regular Expressions
Python - Classes and Objects
Python - Advanced Concepts and Tools
Python - Download the Cheat Sheet
Python - Download the E-Book
Setting Up the Working Environment - Part #1
Network Application #1 - Reading / Writing Device Configuration via SSH
Network Application #2 - Building an Interactive Subnet Calculator
Network Application #3 - Extracting Network Parameters & Building Graphs
Network Application #4 - Building a Basic Network Packet Sniffer
Network Application #5 - Config File Management and E-mail Notifications
[EXTRA] Running Python Code via Remote Servers
Setting Up the Working Environment - Part #2
Network Application #6 - Read SNMPv3 objects with Python
Network Application #7 - Build a Basic NMAP Tool with Python
Network Application #8 - Build a Rogue DHCP Server Discovery Tool with Python
Network Application #9 - Filter and Monitor LLDP Log Messages with Python
Network Application #10 - Build an OSPF Network Discovery Tool with Python
Final Section

Sounds unbelievable given your current programming experience? Well, it's true! How?

First, you will learn and practice every Python key concept, which is explained in one or more video lectures, followed by a short quiz. Each video is filled with relevant examples, in a learn-by-doing fashion and the quizzes will help you consolidate the main ideas behind each Python topic.

After laying the foundation (and also exploring some advanced Python topics), you will dive right into the real-life network scenarios and apply your knowledge to build 10 great network tools using the power of Python.

Equipped with working files, cheat sheets and Python code samples, you will be able to work alongside me on each lecture and each application. I will provide the full code for each application, so you can save time and start coding and testing on the spot.

We will use emulated Arista vEOS switches in VirtualBox and/or GNS3 to test our Python apps in a network environment, so you can see the actual results of running your Python code.

I encourage you to learn Python, an amazingly beginner-friendly programming language and take your network engineering job to a higher level of automation.

What others have to say about this course?

"I have been programming since 1978 and wanted to learn python. I have had no java or OOP experience, and I tried several 'paper' tutorials but got little out of them. The first part of this course is a steady walk through the Python language at just the right speed. The instructor seems to touch all the basis in a logical and methodical way while providing examples and explanations. I can only conclude the instructor is a professional educator who spent considerable time structuring and organizing the course. The result is evident. THIS IS A GREAT WAY TO LEARN PYTHON!" by Larry Laswell

"I've tried learning from the books & multiple videos - most were too basic to make a practical app. Some books were too thick and made me sleep. But still none of the materials had the perfect balance like this course where all the basics were covered, instructions were concise, and Mihai walks you through how to create 7 practical apps step by step. I've also tried reading some advanced python book which didn't make sense because it was too advanced. Let me tell you, this is hands down "that course that takes you up to beyond the basics" to bridge you to the advance topics. Right now I'm hitting the advanced topics and it finally makes sense..." by Joon Park

"Usually I'm not doing courses review but this time I will make an exception. During time I took a lot of trainings but very few provided by Udemy proved as having the right approach in teaching the audience. I will mark this one as being one of my personal top three best trainings as content's quality, technical explanations, and additional learning materials perspective. Long story short this course is a very simple, straight forward way of learning Python for managing IT networks." by Johnny Stanescu

"This is a great course for network engineers who would like to start automating their tasks. Geared towards beginners, this course teaches the fundamentals of programming and applying those concepts to networking. There is a lot of fluff about python on the internet, however the instructor managed to put together the necessary information to start automating the network. A working knowledge of TCP/IP is needed to get the most out of this course. Should you understand every lecture, you will be ready to start writing your own scripts according to your needs. In particular, I loved the use of scapy, an amazing tool which should be in the arsenal of anyone working with TCP/IP." by Costin-Alin Neacsu

"I've seen the blueprint and some demo videos and I was convinced right away. Without a doubt, it's one of the best trainings a network engineer can have. It gives you actual valuable and marketable skills that you can use in your daily job. Mihai explains the topics really well, with practical examples making it a fun way to learn. Highly recommended." by Vlad Vlaicu

Important information before you enroll!

Don't forget you are covered by a 30-day money back guarantee, full refund, no questions asked.
Once enrolled, you have unlimited, 24/7, lifetime access to the course.

"I would firstly thank you for making this course . Secondly, i did like the approach. You understand the mindset of the beginner. I would recommend this course for all those who want to consider using Python for network automation." by Pramod Ramu

Enroll NOW and hop on the Python Network Programming and Automation train. Let's get started!

Who this course is for:

Network Administrators, Network Engineers, Network Managers, Systems Engineers.
Network Quality Assurance Engineers, Network Analysts, Network Professionals.
Python Developers Who Want to Apply Their Knowledge in Network Automation.
Any other kind of IT geeks are welcome, as well.

Build 10 Network Applications with Python

What you'll learn

Explore related topics

Course content

Introduction: First steps before diving into the course!4 lectures • 9min

Python 3 - Basics15 lectures • 38min

Python 3 - Strings8 lectures • 43min

Python 3 - Numbers and Booleans4 lectures • 14min

Python 3 - Lists4 lectures • 19min

Python 3 - Sets4 lectures • 10min

Python 3 - Tuples4 lectures • 12min

Python 3 - Ranges3 lectures • 7min

Python 3 - Dictionaries4 lectures • 17min

Python 3 - Conditionals, Loops and Exceptions13 lectures • 1hr 3min

Requirements

Description

Who this course is for: