'Deletes a key pair by name.
@note: This is a non-standard extension API, and only works with EC2.
:param      keypair: The name of the keypair to delete.
:type       keypair: ``str``
:rtype: ``bool``'

def ex_delete_keypair(self, keypair):

    warnings.warn('This    method    has    been    deprecated    in    favor    of    delete_key_pair    method')
    keypair = KeyPair(name=keypair, public_key=None, fingerprint=None, driver=self)
    return self.delete_key_pair(keypair)
