1582 articles
Learn to connect Python to MySQL using mysql-connector-python and SQLAlchemy. This guide covers queries, parameterized statements, transactions, connection pooling, and ORM patterns for production apps.
Complete guide to Python operators: arithmetic, comparison, logical, bitwise, assignment, identity, membership, and walrus operator. Includes precedence rules and practical examples for every operator type.
Master pandas for data analysis: DataFrames, Series, filtering, groupby, merging, handling missing data, and exporting results. Real-world examples for data cleaning, aggregation, and exploration.
Master Python type hints: basic annotations, generics, Union, Optional, TypedDict, Protocol, and dataclasses. Learn how type hints power FastAPI, Pydantic, and mypy for safer, self-documenting code.
Learn Python type casting: implicit and explicit type conversion, converting between int, float, str, bool, list, tuple, and set. Covers safe conversion patterns, common errors, and when to use each.