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Python variables
Python variables give names to values. A clear name helps describe what a piece of information means in the program.
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A target, a completed count, and a remaining amount have different roles even when they all contain numbers. Naming those roles makes the relationship easier to follow.
A name and a value have different roles
A variable name describes the role of some information; its current value tells you what that information contains. A daily goal can keep the same name while its value changes from one day to another. That distinction helps explain how a program can repeat the same work with different information.
Names also make relationships readable. A completed count and a target count may both be numbers, but confusing them changes the meaning of a progress calculation. Understanding those roles matters before the calculation itself becomes complicated.
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