Validating multiple email addresses

Be careful when doing this in practice, since it can lead to confusing form output.

So you also need to remember to allow for the fact that the fields you are wanting to validate might not have survived the initial individual field checks.There are two ways to report any errors from this step.Probably the most common method is to display the error at the top of the form.Django’s form (and model) fields support use of simple utility functions and classes known as validators.A validator is merely a callable object or function that takes a value and simply returns nothing if the value is valid or raises a Every form that uses this field will have these methods run before anything else can be done with the field’s data.

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