Python int to Binary: bin(), format(), and f-strings
Convert Python int to binary with bin(), format(), f-strings, prefixes, padding, negative numbers, and manual division examples.
Tutorials
Browse Python tutorials for beginners and working developers, including syntax, libraries, examples, projects, and real problem-solving guides.
Python Multiple Constructors: Practical Class Design Patterns
Learn how Python classes handle one __init__ method, alternate constructors with classmethod, inheritance, validation, and factory patterns.
Python Vectors with NumPy: Arrays, Dot Product, and Norms
Work with Python vectors using NumPy arrays, element-wise math, dot products, norms, shapes, broadcasting, and validation.
Knapsack Problem in Python: Dynamic Programming and Tradeoffs
Solve the 0/1 knapsack problem in Python with dynamic programming, capacity states, reconstruction, complexity, and greedy limitations.
Matrix Addition in Python: Lists, NumPy, Shapes, and Validation
Add matrices in Python with nested lists or NumPy, validate compatible shapes, handle numeric dtypes, and avoid silent broadcasting mistakes.
Python iteritems(): Replace dict.iteritems() in Python 3
Migrate Python 2 iteritems() calls to Python 3 items(), preserve lazy iteration, and choose list conversion only when a snapshot is required.
Python vars(): Inspect Object Attributes and Namespaces
Use Python vars() safely to inspect object attributes and namespaces, understand __dict__, handle objects without it, and avoid mutating state accidentally.
Doubly Linked List in Python: Nodes and Operations
Implement a doubly linked list in Python with previous and next pointers, insertion, deletion, traversal, edge cases, and complexity tradeoffs.
Remove Quotes From a Python String Safely
Remove quote characters from Python strings with strip(), replace(), prefix and suffix methods, or safe parsers for structured data.
Flatten a List in Python: One Level, Nested Lists, and Safe Patterns
Choose a one-level flatten, chain.from_iterable, or recursive traversal based on the actual nesting and whether strings must remain atomic.