Python Fundamentals

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infoWhy this? Text-based programming provides a precise way to automate instructions and create interactive solutions. By using data types, variables, selection, and repetition, we learn to translate algorithms into working programs and debug them systematically.

scheduleWhy now? This unit applies sequence, selection, iteration, variables, and tracing from algorithmic thinking directly in Python. It establishes the fluency needed to tackle more complex control flow, functions, lists, and algorithms later in the course.

Python executes statements in order unless control flow changes that order.
Variable names should be meaningful and describe the data they store.
The print() function outputs values to the console.
The editor is used to build and save full programs, while the shell/console is used to run and test output.
Common Python data types include int, float, str, and bool; the two bool values are True and False.
The input() function returns a str; use int() to convert suitable input to a whole number or float() to convert it to a decimal number before numerical calculation.
Indentation defines code blocks in Python.
If, elif, and else select different paths based on conditions.
For loops repeat a definite number of times, often using range().
While loops repeat while a condition remains true.
Syntax errors prevent code from running.
Logic errors allow code to run but produce incorrect results.

rocket_launchYou must be able to

Write small Python programs using variables, input, and output.
Implement simple selection and repetition with clear control flow.
Trace and test code to identify syntax and logic errors.
Build and test a simple interactive program, such as a quiz or chatbot.

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