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Python Calculate a total with sum()

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PythonIntermediate

Calculate a total with sum(). Learn the syntax using an editable python example.

When to use it

Use this technique in small programs, reusable helpers and everyday debugging. Check the input types, any required imports, and whether the operation changes existing values or produces a new result.

Syntax

print(sum(amounts))

Parameters

Inspect the literals, variables and function arguments used in the example. Replace values with compatible python types before testing.

Returns / effect

Expected demonstration result: 25.

Python · Editable example
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Expected output

25

Common mistake and fix

Match the required syntax and test boundary cases.

Good practices

Keep the example small, check its documented output, then adapt it to your own project with validation and error handling.

Practice exercise

Change the amounts list so the printed sum is 15.

Compatibility: Confirm support in your installed language/runtime version; some examples need modern standard libraries.

Related concepts: basics, examples, syntax

Explain this code

This python example shows how to calculate a total with sum(). It uses a small, reproducible input so you can inspect the behavior without changing a production project.

Try a small exercise

Change the amounts list so the printed sum is 15.

Show a hint

Try the list [3, 5, 7].

Runs your edited code and compares its output with this exercise test.

Show example solution
amounts = [3, 5, 7]
print(sum(amounts))

Related patterns across languages

Examples share a topic label, but may perform different operations.

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