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Dec 31, 2025

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Python Basics for Beginners

galactic

@bella_18

Python is a powerful programming language that lets you write... Show more

A computer program is a specific set of ordered steps a computer performs to accomplish a task when given a variety of inpots.
-Flowcharts -

Python Programming Basics

Ever wonder how computers understand what to do? Computer programs are simply ordered steps that tell a computer how to perform a task. In Python, you can map out these steps using flowcharts with ovals marking the beginning and end, parallelograms showing input/output, and rectangles representing calculations and other operations.

When writing code, you'll want to include notes to yourself using comments. Add a single-line comment with the # symbol (like print("Hello") #This displays a greeting). For longer explanations, use triple quotes """ to create multi-line comments that the computer will ignore.

Variables are like labeled containers that store data in your computer's memory. Creating one is simple - just give it a name and a value using the equals sign: number1 = 24. Your variables can hold different data types like strings (text), integers (whole numbers), floating-point numbers (decimals), and booleans $true/false values$ .

💡 Always use descriptive variable names that explain what information is being stored! Names like userAge tell you much more than x.

When naming variables, remember these rules: start with a letter (not a number), use only letters, numbers, and underscores, avoid spaces, and don't use Python's reserved words. For longer names, use camelCase (like userFirstName) to keep things readable.

You can perform calculations using operators like + (add), - (subtract), * (multiply), / (divide), and ** (exponent). To display information to users, use the print() function. When combining text strings, you're using concatenation: print $"Hello " + "world"$ . Remember to add spaces where needed, and when mixing text with numbers, convert the numbers to strings first: print $"Age: " + str(25)$ .

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Dec 31, 2025

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1 page

Python Basics for Beginners

galactic

@bella_18

Python is a powerful programming language that lets you write instructions computers can follow. These notes cover the basics of Python coding, from creating variables to displaying information on the screen. Understanding these fundamentals will give you the building blocks... Show more

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Python Programming Basics

💡 Always use descriptive variable names that explain what information is being stored! Names like userAge tell you much more than x.