def for_display(self, display):
return self.displays[display]<EOL>
Returns the ``ChoiceEntry`` for the given display name.

        Parameters
        ----------
        display: string
            Display name for which we want the choice entry.

        Returns
        -------
        ChoiceEntry
            The instance of ``ChoiceEntry`` for the given display name.

        Raises
        ------
        KeyError
            If the display name is not an existing one.

        Example
        -------

        >>> MY_CHOICES = Choices(('FOO', 1, 'foo'), ('BAR', 2, 'bar'))
        >>> MY_CHOICES.for_display('foo')
        ('FOO', 1, 'foo')
        >>> MY_CHOICES.for_display('foo').constant
        'FOO'
        >>> MY_CHOICES.for_display('qux')
        Traceback (most recent call last):
        ...
        KeyError: 'qux'