Raise the right exceptions

This is part of a series of posts I’m doing as a sort of Python/Django Advent calendar, offering a small tip or piece of information each day from the first Sunday of Advent through Christmas Eve. See the first post for an introduction.

Let’s have an argument

Suppose you write a function like this:

def divide(dividend, divisor):
    """
    Divide ``dividend`` by ``divisor`` and return the result.

    """
    return dividend …

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