def sign_plaintext(client_secret, resource_owner_secret):
 signature = utils.escape((client_secret or u''))
 signature += u'&'
 signature += utils.escape((resource_owner_secret or u''))
 return signature

def sign_plaintext ( client_secret , resource_owner_secret ) : signature = utils . escape ( ( client_secret or u'' ) ) signature += u'&' signature += utils . escape ( ( resource_owner_secret or u'' ) ) return signature
sign a request using plaintext .