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Data types are the foundation of every Python calculation in finance. Learn the four types you use daily, how to convert between them, and how to spot the silent errors that break balance sheets.
Keywords are Python's reserved words that control your program's flow and structure. Learn to spot them, use them correctly, and avoid the common mistakes that block beginners.
Variables are how you store and update positions in Python, just as you track them in a treasury system. Learn to assign, name, and update variables so your finance code is clear, maintainable, and reflects real positions.