easy Error Handling

Robust Numeric Input

The Brief

Write a function `get_positive_number(prompt)` that keeps asking the user for input until they enter a valid positive number (integer or float, greater than zero). It must handle non-numeric strings, negative numbers, and zero. Demonstrate the function by asking for a price and printing it back.

Acceptance Criteria

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3 Convert the input using float() inside a try block

5 If the number is not greater than zero, print a different friendly message and re-prompt

6 Return the valid number when one is entered

1 Define a function called get_positive_number that takes a prompt string

2 Use a while True loop inside the function

7 Demonstrate by calling the function for a price prompt and printing the value with two decimal places

4 Catch ValueError for non-numeric input and print a friendly message before re-prompting

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solution.py

Python 3

# Write a function that keeps prompting until valid positive number

def get_positive_number(prompt):
    pass

# Demonstrate the function

Console