exception handling exponential notation expression as input boolean definition of spaces in face fact py factorial definition of program recursive definition factorial py fahrenheit fetch-execute cycle fib recursive function fibonacci numbers file closing opening processing program to print read operations representation write operations flash memory float literal representation floppy flowchart flowcharts for loop if semantics loop and half sentinel max-of-three decision tree max-of-three sequential solution nested decisions post-test loop temperature conversion with warnings two-way decision while loop for statement (for loop) as counted loop flowchart semantics syntax using simultaneous assignment formal parameter format specifier from import function actual parameters arguments as black box as subprogram call createlabeledwindow defining for modularity invokingsee functioncall missing return multiple parameters none as default return parameters recursive return value returning multiple values signature (interface) to reduce duplication function definition functions anagrams built-in chr eval float int len max open ord range read readline readlines round str type write distance drawbar fib