Learn test123 Online: Free Course with AI Tutor & Certificate
This test123 online course teaches you how to write Python code from scratch. Across 15 modules and 145 video lessons, you'll master syntax, loops, and object-oriented programming. The 1-hour program is completely free to learn, helping you build real-world mini projects before grabbing an optional certificate.
test123 course syllabus
01 Introduction to Python
- What is Python and why is it popular
- How to install Python and set up IDE
- What are variables
- What are data types
- How to use input and output functions
- What are comments in Python
- How to use operators in Python
- What is type casting in Python
- How to write your first Python program
02 Python Syntax and Execution
- Python indentation and code blocks
- Whitespace significance in Python
- Semicolons
- Understanding Line Continuation in Python
- Understanding the Python execution model
- Running Python scripts vs interactive shell (REPL)
- Shebang line
- How to comment blocks efficiently
- Command-line arguments with sys.argv
03 Conditional Statements and Loops
- What are conditional statements
- Nested If Else & elif Statements
- What are loops in Python (for loop)
- While Loop in Python
- How to use break and continue
- What is pass statement in Python
- How to use range() in loops
- What are nested loops in Python
- for Loop with else in Python
- while Loop with else in Python
- Logical operators
- Comparing values using is vs ==
04 Working with Numbers and Strings
- Integer and float operations
- Complex numbers in Python
- String creation and manipulation
- String formatting
- String methods and functions
- Slicing and indexing strings
- Escape characters and raw strings
- Unicode and encoding basics
- Working with multiline strings
- Useful built-in functions (len, ord, chr, etc.)
05 Lists and List Comprehension
- What is a list in Python
- Accessing Elements of a List in Python
- Adding Elements to a List in Python
- How to modify list elements
- How to use list slicing
- What are list methods in Python
- How to use list comprehensions
- How to iterate through lists
- How to use nested lists
- Shallow vs Deep Copy of Lists
- Sorting Lists, Tuples, and Objects
06 Tuples and Sets
- What is a tuple in Python
- How to create and access tuples
- What are tuple methods
- How to use tuple packing and unpacking
- What is a set in Python
- How to add and remove set elements
- What are set operations (union, intersection, difference)
- How to use frozen sets
- Set comprehension
07 Dictionaries in Python
- What is a dictionary in Python
- How to update dictionary values
- How to use dictionary methods
- What are nested dictionaries
- How to iterate through dictionaries
- What are dictionary comprehensions
- How to use get() and setdefault()
- Merging dictionaries in Python 3.9+
- Converting dictionaries to JSON and vice versa
- Using defaultdict and OrderedDict from collections
08 Functions and Lambda Expressions
- What is a function in Python
- What are function arguments (positional, keyword, default)
- How to use variable length arguments (*args, **kwargs)
- What is return statement in Python
- How to use lambda functions
- What are recursive functions
- How to use docstrings in functions
- Nested functions and closures
- First-class functions
- Higher-order functions
- Function annotations and type hints
09 Modules, Packages, and Virtual Environments
- What is a module in Python
- How to import modules
- What are built-in modules in Python
- How to create your own module
- What is a package in Python
- How to use pip for installing packages
- Import Math Functions in Python
- How to use math and random modules
- How to use datetime module
- Creating and managing virtual environments
- Managing dependencies with requirements.txt
- Using __init__.py
10 File Handling in Python
- What is file handling in Python
- How to open and close files
- Reading/Writing Files
- How to append data in files
- What is file handling with “with” statement
- How to handle binary files
- Reading/writing CSV files using csv module
- Reading/writing JSON files
- Handling file paths using os and pathlib
11 Exception and Error Handling
- Exception Handling in Python
- How to use try and except blocks
- How to raise exceptions
- How to create custom exceptions
- How to handle multiple exceptions
- Using try block
- Logging errors using the logging module
- Assertion statements in Python
12 Object-Oriented Programming
- What is OOP
- Creating classes and objects
- Class vs instance attributes
- Using __init__ constructor
- Instance and class methods
- Inheritance
- Method overriding
- super() function
- Using __str__ and __repr__
- Encapsulation, Abstraction, and Polymorphism
- Magic/Dunder Methods in Python
- Static and class methods
13 Working with Libraries
- Python Packages & pip
- Exploring NumPy basics
- Working with Pandas DataFrames
- Data visualization with matplotlib
- Web scraping with requests and BeautifulSoup Part 1
- Web scraping with requests and BeautifulSoup Part 2
- APIs using requests and json
- Datetime Module
14 Debugging and Testing
- Basic debugging using print()
- Using pdb (Python Debugger)
- Common debugging strategies
- Writing test functions with unittest Part 1
- Writing test functions with unittest Part 2
- Using pytest for advanced testing
- Mocking in Python tests
- Code coverage
15 Real-World Mini Projects
- Creating a Calculator
- To-Do App with file storage
- Weather app using API
- Contact book using dictionaries
- Quiz game using loops and conditions
- Rock Paper Scissors Game in Python
- Basic data analysis with CSV using pandas
Skills you'll gain
Add these to your LinkedIn profile and resume the day you finish.
Who should take this test123 course?
And exactly what you need before starting (spoiler: almost nothing).
This course is for
- Complete beginners looking for a basic test123 course to start coding.
- College students in India needing practical Python skills for technical interviews.
- Working professionals who want to automate daily tasks using simple scripts.
- Career switchers aiming to transition into software development or data analytics.
Prerequisites
- No prior programming experience is required to start this test123 course.
- A computer with an internet connection to run basic code in a browser.
- Basic computer literacy and a willingness to solve logical problems.
How learning works on LearnTube
The structure of a bootcamp, the price of free.
AI curates your path
Our AI picks the top 1% of video content for each topic and arranges it into a structured, goal-based curriculum. No more tutorial roulette.
Learn, then get quizzed
After every lesson, your AI tutor asks you a question and gives personalised feedback on your answer, so gaps get fixed immediately.
Finish with proof
Complete the course, build the capstone project, and claim a certificate recognised by 900+ hiring partners.
A complete test123 course: free, structured and job-focused
You'll start by answering a simple question: what is Python and why is it popular? This test123 tutorial breaks down the exact syntax you need to write functional scripts. You will move through 15 structured modules, starting with basic conditional statements and loops before advancing to tuples, sets, and dictionaries. By the time you reach the object-oriented programming section, you'll know how to structure complex applications. We also cover file handling in Python, exception and error handling, and working with libraries to prepare you for actual development tasks.
The best test123 course experience relies on active practice. That is why LearnTube pairs curated YouTube video lessons with an AI tutor that tests your knowledge. You will take a quick quiz after every lesson to make sure the concepts stick. Everything wraps up with real-world mini projects where you apply your new debugging and testing skills.
Learning on our platform is completely free. You can watch all 145 video lessons, which take about 1 hours total, without paying anything. If you want to prove your skills to the 900+ hiring partners in our network, you can upgrade to include a paid optional certificate at the end. This test123 certification course is designed for absolute beginners who want a clear, guided path to understanding programming.
Jobs you can target after learning test123
test123 is a gateway skill for some of the fastest-growing roles in tech.
Writes and tests basic code for software applications and internal tools.
Uses scripts to clean, process, and analyze large datasets for business reporting.
Creates scripts to automatically test software features and report bugs.
Typical entry-level salary ranges in India as of August 2026. Actual compensation varies by city, company and experience.
Earn a test123 certificate employers recognise
Finish the course and claim a certificate you can share anywhere.
- Learn 100% free: every lesson, quiz and the AI tutor cost nothing
- Claim your certificate when you complete the course (an optional paid add-on)
- Recognised by 900+ hiring partners across India
- One click to share on LinkedIn and add to your resume
Why learners choose LearnTube
Real reviews from Google. You learn free, you get assessed free, and you pay only if you want the certificate.
Though I have 11 years of experience as an HRBP, the course helped me refresh my knowledge and gave me insights into new trends in the market. The modules were clear and easy to understand, and the quizzes were well designed. I have added the certificate to my LinkedIn profile.
I had a lot of doubts while learning, but the AI chatbot answered them in detail with simple summaries. The videos on the platform saved me a lot of time as I didn't have to search YouTube and watch random content.
Just earned my certificate in HR Management from LearnTube.ai! The platform is user-friendly and the assessment was a great way to validate my knowledge. Feeling proud of this accomplishment!
I enrolled in a LearnTube personalized course to get into a Data Analytics role. It helped me learn SQL in depth and gave me hands-on experience with Power BI. I attached the LearnTube certificate to my CV, it added credibility to my profile, and I'm currently in the interview process.
The interface is user-friendly and intuitive, making it easy to navigate the course. I encountered no errors during my time using the platform, which was a refreshing change from other online learning platforms.
Just cleared the Business Analyst assessment and got certified! Loved how the course simplifies big concepts like data-driven decision making into short, practical lessons. The automated quizzes kept me on track the whole time. Perfect boost for my resume!
The certificate gave me a real edge during my B.Tech. By the time I graduated, I had skills that set me apart from my peers, and the certification opened up more job opportunities. It gave me the confidence to stand out during interviews.
I manage many software projects as a General Manager and was looking for a good certification program to stay competitive. After researching many programs, I chose LearnTube and it was much better than I expected. The material is well-organized and practical, and what I liked most is the lifetime access.
Frequently asked questions
Everything learners ask before starting this test123 course.
What job roles does this test123 training lead to?
You can pursue entry-level roles like Junior Python Developer, Automation Tester, or Data Analyst Trainee. These positions typically offer starting salaries between ₹3-5 LPA in India, depending on your location and the specific company hiring you.
Can I study this test123 online course on my mobile phone?
Yes, the entire platform is mobile-friendly. You can watch the curated video lessons and take the AI-tutor quizzes directly from your smartphone, making it easy to learn coding concepts while commuting or traveling.
How long does the test123 full course take to complete?
The video content takes about 1 hours to watch from start to finish. However, most learners spend a few extra hours practicing the code, completing the 145 quizzes, and building the real-world mini projects.
What will I be able to build after finishing these classes?
You will have the skills to write functional Python scripts, automate repetitive computer tasks, and build basic applications. The final modules specifically guide you through real-world mini projects to solidify your practical coding abilities.
Is this a free test123 course with certificate?
The learning content is entirely free. You can access all 15 modules and quizzes at no cost. If you want the official certificate to share on your resume, it is available as a paid optional add-on.
Do I need to install software before starting?
No, you do not need any special software to begin. You can write and test your initial code using free online compilers. Later modules will explain how to set up virtual environments locally on your machine.
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145 lessons, an AI tutor that never gets tired, and a certificate at the finish line. All you need is an hour a day.
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