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curriculum/challenges/english/blocks/learn-the-bisection-method-by-finding-the-square-root-of-a-number/65ef198fde24dfb7ff675b42.md

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--description--

The raise statement allows you to force a specific exception to occur. It consists of the raise keyword followed by the exception type, and enables you to provide a custom error message:

py
raise ValueError("Invalid value")

When the code above runs, a ValueError is raised and the message "Invalid value" is shown to the user.

If the square_target is less than 0, no real-valued square root can be computed. Therefore, raise a ValueError with the message 'Square root of negative number is not defined in real numbers'. Don't forget to remove the pass keyword.

--hints--

You should remove the pass keyword.

js
({
    test: () => {
        assert.isFalse(runPython(`_Node(_code).find_function("square_root_bisection").find_ifs()[0].find_bodies()[0].has_pass()`))
    }
})

You should raise a ValueError with the message 'Square root of negative number is not defined in real numbers' inside the if body.

js
({
    test: () => {
        
        assert(runPython(`_Node(_code).find_function("square_root_bisection").find_ifs()[0].find_bodies()[0].is_equivalent("raise ValueError('Square root of negative number is not defined in real numbers')")`))
    }
})

--seed--

--seed-contents--

py
--fcc-editable-region--
def square_root_bisection(square_target, tolerance=1e-7, max_iterations=100):
    if square_target < 0:
        pass

--fcc-editable-region--