return func elsecode func __code__ expected list(code co_varnames[:code co_argcount]def onerror(argnamecriteria)errfmt '% argument "%snot %sraise typeerror(errfmt (func __name__argnamecriteria)def oncall(*pargs**kargs)positionals expected[:len(pargs)for (argnamecriteriain argchecks items()if argname in kargsif failif(kargs[argname]criteria)onerror(argnamecriteriafor all to test passed by name elif argname in positionalspassed by posit position positionals index(argnameif failif(pargs[position]criteria)onerror(argnamecriteriaelsenot passed-dflt if traceprint('argument "%sdefaultedargnamereturn func(*pargs**kargsokrun original call return oncall return ondecorator if __name__ ='__main__'import sys def fails(test)tryresult test(exceptprint('[% ]sys exc_info()[ ]elseprint('?% ?resultprint(''canned use casesrangestypes @rangetest( =( ) =( ) =( )def date(mdy)print('date % /% /% (mdy)date( fails(lambdadate( )@typetest( =intc=floatdef sum(abcd)print( dsum( sum( = = = fails(lambdasum('spam' )fails(lambdasum( = = = )print(''arbitrary/mixed tests test your knowledgeanswers