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...Advanced python exercises and solutions have been inserted between the original text of take care exercise d min write a decorator which wraps functions to log function arguments return value on each call provide support for both positional named your wrapper should args kwargs print them logged def func len you called it returned solution as class init self name format str list cast is because tuple length one has an extra comma if else join pair in items val out before after long version with doctests improved introspection import functools none b this documented pass doc update cache invocation results store pairs arg result dictionary attribute object being memoized fibonacci n assert memoize try ans except keyerror...