Does the UK not have a constitution?

The United Kingdom does not have a specially designated written constitution, but there are laws of a constitutional nature, such as the Bill of Rights. A country can have no constitution, but there can be constitutional government, such as the United Kingdom, because the British people have a stronger idea of the rule of law; but a country with a constitution does not necessarily have a constitutional government, his constitution is only written on paper, and not necessarily fully implemented, there are too many examples of this, there is no rule of law tradition in these countries.