CODEWITHSUNDEEP
python
Arthur
Arthur

Reputation: 159

Raise an error and after that return a value in Python

I want to raise an error and then return a value.

raise ValueError('Max Iter Reached')
return x

And make both lines work.

Now I found this question is stupid and I decided to print an error message.

print 'Max Iter Reached'
return x

Upvotes: 2

Views: 5864

Answers (2)

John Gordon
John Gordon

Reputation: 33335

This is impossible. A function can either return a value or raise an exception. It cannot do both. Calling return or raise will absolutely terminate the function.

You could encode a return value inside the exception message, like this:

raise SomeException('my value is 5')

Or you could return a tuple of an exception and a value:

return (SomeException('hello'), 5)

Upvotes: 6

levi
levi

Reputation: 22697

It does not make sense but In case you need it. 

def your_method(self):
    ......
    try:
        raise ValueError('Max Iter Reached')
    except ValueError as e:
        return value

Upvotes: 3

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