Translate the following English sentence to French:
"I regard it as being extraordinarily helpful that within Mercosur, to which both these countries belong, a code of values has now been adopted under which dictators, or attempts to establish a dictatorship, no longer have a chance of success."
Je trouve particulièrement bienvenu le fait qu'entre-temps, le MERCOSUR, auquel les deux pays appartiennent, a adopté un code de valeurs qui barre la route aux dictateurs et aux tentatives visant à instaurer une dictature.