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Python

Python Variables & Data Types

Learn the foundations of Python programming. Master variables, data types, and type conversion — the building blocks of every Python program.

0/300 pts

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Python Control Flow

Python Beginner

Master decision-making and loops in Python. Learn if statements, for loops, while loops, and loop control to write programs that think and repeat.

0/400 pts

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Python Functions Basics

Python Beginner

Learn to write reusable code with Python functions. Understand parameters, return values, and how to organize your code into clean, callable functions.

0/100 pts

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Python Lists & Dictionaries

Python Beginner

Master Python's most important data structures. Learn to store, access, and manipulate collections of data with lists and dictionaries.

0/200 pts

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Python Intro to OOP

Python Beginner

Get started with Object-Oriented Programming in Python. Learn to create classes, define objects, use methods and attributes, and understand basic inheritance.

0/300 pts

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Python For Loops Mastery

Python Beginner

Master Python for loops from basics to advanced patterns. Learn ranges, list iteration, nested loops, and more to process data efficiently.

0/500 pts

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Python While Loops Mastery

Python Beginner

Master Python while loops and loop control. Learn condition-based iteration, break and continue statements, and when to use while vs for loops.

0/300 pts

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1.5x pts Pro

Python OOP: Classes & Methods

Python Intermediate

Master the foundations of Object-Oriented Programming in Python. Learn to create classes, work with instance methods, and use class attributes and methods.

0/300 pts

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1.5x pts Pro

Python OOP: Encapsulation & Inheritance

Python Intermediate

Learn data protection and code reuse in Python OOP. Master encapsulation, inheritance basics, and method overriding to build robust class hierarchies.

0/300 pts

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1.5x pts Pro

Python OOP: Advanced Patterns

Python Intermediate

Take your Python OOP skills to the next level. Learn special methods, property decorators, and composition to write professional-grade Python code.

0/300 pts

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1.5x pts Pro

Python Comprehensions & Generators

Python Intermediate

Write elegant, Pythonic code with comprehensions and generators. Master list, dictionary, and set comprehensions plus generator expressions for efficient data processing.

0/500 pts

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1.5x pts Pro

Python Functions: Core Concepts

Python Intermediate

Build a solid foundation in Python functions. Learn function definitions, parameters, return values, default parameters, and keyword arguments.

0/500 pts

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1.5x pts Pro

Python Functions: Arguments & Scope

Python Intermediate

Master advanced argument patterns and variable scope in Python. Learn *args, **kwargs, and function scope to write flexible, professional functions.

0/300 pts

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1.5x pts

Python File Basics

Python Intermediate

Learn to read, write, and manage files in Python. Master file I/O fundamentals including reading, writing, file modes, and appending data.

0/400 pts

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1.5x pts Pro

Python CSV, JSON & Paths

Python Intermediate

Work with real-world data formats in Python. Learn context managers, file paths, CSV processing, and JSON handling for practical data tasks.

0/400 pts

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1.5x pts Pro

Python Error Handling & File Ops

Python Intermediate

Master exception handling and advanced file operations. Learn error handling, binary files, directory operations, and real-world file processing patterns.

0/400 pts

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2x pts Pro

Python Functions: Decorators & Closures

Python Advanced

Take your Python functions to the next level. Learn lambda functions, recursion, higher-order functions, closures, and decorators.

0/600 pts

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2x pts Pro

Python Regex Basics

Python Advanced

Learn the fundamentals of regular expressions in Python. Master basic patterns, character classes, quantifiers, and anchors for text matching and validation.

0/400 pts

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2x pts Pro

Python Regex Advanced

Python Advanced

Master advanced regex patterns in Python. Learn groups, capturing, alternation, common use cases, and best practices for professional text processing.

0/500 pts

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2x pts Pro

Pandas Basics

Python Advanced

Get started with data analysis using Pandas. Learn DataFrames, Series, reading data, selecting, filtering, and cleaning data for analysis.

0/500 pts

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2x pts Pro

Pandas Advanced

Python Advanced

Master advanced Pandas operations. Learn data transformation, aggregations, groupby, merging datasets, time series, and advanced DataFrame operations.

0/500 pts

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2x pts Pro

Polars Basics

Python Advanced

Get started with fast data analysis using Polars. Learn DataFrames, selecting, filtering, data transformation, and aggregations with this modern DataFrame library.

0/500 pts

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2x pts Pro

Polars Advanced

Python Advanced

Master advanced Polars operations. Learn joins, sorting, date handling, lazy evaluation, and reading/writing data for high-performance data processing.

0/500 pts

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Python Interview Prep

1.5x pts

Arrays, Strings & Hashing

Interview Prep Intermediate

Crack the most-asked category of coding interview questions. Master the core patterns interviewers expect — two pointers, sliding window, prefix sums, hashing, and frequency counting — with 400 hand-graded Python exercises modeled on real technical screens at top tech companies.

0/800 pts

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1.5x pts

Linked Lists, Stacks, Queues & Heaps

Interview Prep Intermediate

Master the four data structures that show up most in coding interviews after arrays: linked lists, stacks, queues, and heaps. You will practice 400 hand-curated problems covering traversal, reversal, fast/slow pointers, cycle detection, doubly linked lists, LRU cache design, balanced expressions, monotonic stacks, queues and deques, sliding-window maximum, heap-based top-K, median-of-stream, and scheduling. Every solution is hand-written for clarity and interview-ready idioms.

0/800 pts

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1.5x pts

Binary Search & Sorting

Interview Prep Intermediate

Master the two techniques that turn O(n) and O(n²) problems into O(log n) and O(n log n): binary search and sorting. You will practice 400 hand-curated problems covering the textbook binary search and its many variants, the powerful "binary search on the answer" pattern, every comparison-based and non-comparison sorting algorithm worth knowing, quickselect for kth-order statistics, custom comparators, and the dozens of interview problems that yield to sort + scan. Every solution is hand-written.

0/800 pts

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1.5x pts

Trees, Tries & Graphs

Interview Prep Intermediate

The data structures that separate junior from senior coding interviews. You will practice 400 hand-curated problems covering binary trees (all four traversals, depth/balance/path-sum/LCA/serialize), binary search trees (validate/insert/delete/kth), tries (insert/search/autocomplete), graphs (DFS/BFS/components/cycle detection), topological sort, Dijkstra and Bellman-Ford for shortest paths, minimum spanning trees, and union-find. Every solution is hand-written for clarity and interview-ready idioms.

0/800 pts

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1.5x pts

Recursion, Backtracking & Bit Tricks

Interview Prep Intermediate

The technique stack that turns hard interview problems into 15-line solutions: recursion, divide-and-conquer, backtracking, bit manipulation, and the recursion-to-memoization bridge that leads into dynamic programming. You will practice 400 hand-curated problems covering recursion fundamentals, classic D&C (merge sort/max subarray/closest pair), backtracking on sequences and grids (N-Queens, Sudoku, word search), constraint-driven search (combination sum, partition, IP restoration), bit tricks, and memoization. Every solution is hand-written.

0/800 pts

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1.5x pts

DP, Greedy & Intervals

Interview Prep Intermediate

The capstone interview-prep course: dynamic programming, greedy algorithms, and interval problems — the three techniques that separate strong candidates from elite ones. You will practice 400 hand-curated problems covering 1D DP, 2D DP, knapsack family, string DP (LCS, edit distance, palindromic subsequences), greedy proofs (activity selection, jump game, gas station), and interval merging/insertion/scheduling. Every solution is hand-written.

0/800 pts

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JavaScript

Pro

JS Variables & Data Types

JavaScript Beginner

Learn the foundations of JavaScript programming. Master variables, data types, and type conversion — the building blocks of every JS program.

0/300 pts

Start Course

Pro

JS Control Flow

JavaScript Beginner

Master decision-making and loops in JavaScript. Learn if statements, for loops, while loops, and loop control to write programs that think and repeat.

0/400 pts

Start Course

Pro

JS Functions Basics

JavaScript Beginner

Learn to write reusable code with JavaScript functions. Understand parameters, return values, and how to organize your code into clean, callable functions.

0/100 pts

Start Course

Pro

JS Arrays & Objects

JavaScript Beginner

Master JavaScript's core data structures. Learn to store, access, and manipulate collections of data with arrays and objects.

0/200 pts

Start Course

Pro

JS Intro to OOP

JavaScript Beginner

Get started with Object-Oriented Programming in JavaScript. Learn to create classes, define objects, use methods and properties, and understand basic inheritance.

0/300 pts

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SQL

Pro

SQL Fundamentals

SQL Beginner

Learn SQL from the ground up. Master querying databases with SELECT, filtering rows with WHERE, sorting results, aggregating data with GROUP BY, and combining tables with JOINs.

0/600 pts

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1.5x pts Pro

SQL Intermediate

Take your SQL skills further with advanced joins, subqueries, CTEs, window functions, and built-in string and date functions. Write complex queries with confidence.

0/500 pts

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Other

Jinja2 for Web Development

Other Beginner

Master Jinja2 templating for Flask web applications. Learn template syntax, filters, control structures, inheritance, macros, and how to wire templates into Flask routes, forms, and flash messages — the templating skills every Flask developer needs.

0/1000 pts

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Jinja2 for Network Automation

Other Beginner

Use Jinja2 to generate network device configurations from data. Learn to template Cisco IOS, Junos, and Arista EOS configs, use network filters like ipaddr and ipv4, branch on device role, and render templates with Python — the foundation skill for network automation.

0/1000 pts

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Ansible Automation with Jinja2

Other Beginner

Learn Ansible end-to-end: write playbooks, manage inventory, use core modules, set facts, loop and branch with `when`, and render Jinja2 templates onto real devices. The practical foundation for automating servers and network devices at scale.

0/1000 pts

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Courses

Python

Python Variables & Data Types

Python Control Flow

Python Functions Basics

Python Lists & Dictionaries

Python Intro to OOP

Python For Loops Mastery

Python While Loops Mastery

Python OOP: Classes & Methods

Python OOP: Encapsulation & Inheritance

Python OOP: Advanced Patterns

Python Comprehensions & Generators

Python Functions: Core Concepts

Python Functions: Arguments & Scope

Python File Basics

Python CSV, JSON & Paths

Python Error Handling & File Ops

Python Functions: Decorators & Closures

Python Regex Basics

Python Regex Advanced

Pandas Basics

Pandas Advanced

Polars Basics

Polars Advanced

Python Interview Prep

Arrays, Strings & Hashing

Linked Lists, Stacks, Queues & Heaps

Binary Search & Sorting

Trees, Tries & Graphs

Recursion, Backtracking & Bit Tricks

DP, Greedy & Intervals

JavaScript

JS Variables & Data Types

JS Control Flow

JS Functions Basics

JS Arrays & Objects

JS Intro to OOP

SQL

SQL Fundamentals

SQL Intermediate

Other

Jinja2 for Web Development

Jinja2 for Network Automation

Ansible Automation with Jinja2

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