PYTHON PROGRAM • DECISION MAKING

Classify a Number in Python

Learn classify a number in python with a short, executable Python example.

Beginnerifelifelse

PROBLEM UNDERSTANDING

Input and expected output

Sample input

No input required

Sample output

Negative

COMPLETE PYTHON PROGRAM

Complete Python implementation

number = -7
if number > 0:
    print('Positive')
elif number < 0:
    print('Negative')
else:
    print('Zero')

CURRENT STEP

Select Start to walk through the important lines.

SELECTED LINE

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EXPECTED OUTPUT FOR THE SAMPLE

Negative

0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

Initialize the sample values used to classify a number.
Apply if and elif to compute the required result.
Display the result for classify a number and compare it with the documented sample output.

This example of classify a number computes the result directly from the prepared sample data. It demonstrates if, elif, and else and prints a deterministic result that can be checked against the sample output.

EFFICIENCY

Time and space complexity

Time complexity

O(1)

Auxiliary space

O(1)

DEBUGGING CHECKLIST

Common mistakes

Check this

For classify a number, keep the data shape and value types consistent with if.

Check this

Keep every dependent statement inside the correct indented Python block.

Check this

Verify the final if and elif result against the sample before trying new data.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.