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Python quick refs / cheat sheets
✅ Creating Lists my_list = [1, 2, 3, 4] empty_list = [] mixed_list = [1, "hello", 3.14, True] ➕ Adding Elements my_list.append(5) # Add to end my_list.insert(2, 99) # Insert at index 2 my_list.extend([6, 7]) # Add multiple elements...
📘 Python Dictionary Cheat Sheet 🔧 Creating Dictionaries my_dict = {"name": "Alice", "age": 25, "city": "New York"} empty_dict = {} alt_dict = dict(name="Bob", age=30) 🛠 Accessing Values my_dict["name"] # Get value by key my_dict.get("a...
pip install sqlalchemy Optional for SQLite (included by default) or install a specific database driver: pip install psycopg2 # for PostgreSQL pip install pymysql # for MySQL 🏗️ Define Models (ORM Style) from sqlalchemy import Column, Integer, ...
