Think Python - Denison University

3.15. Exercises 27Here’s an example that usesdo_twicetocall a function namedprint_spamtwice.def print_spam():print 'spam'do_twice(print_spam)1. Type this example intoascriptand testit.2. Modify do_twice so that it takes two arguments, a function object and a value, and calls thefunction twice, passingthe value as an argument.3. Write a more general version of print_spam, called print_twice, that takes a string as aparameter and printsittwice.4. Use the modified version of do_twice to call print_twice twice, passing 'spam' as anargument.5. Define a new function called do_four that takes a function object and a value and calls thefunctionfourtimes,passingthevalueasaparameter. Thereshouldbeonlytwostatementsinthe body of this function, not four.You can see mysolutionatthinkpython.com/code/do_four.py.Exercise 3.5 This exercise 2 can be done using only the statements and other features we havelearned sofar.1. Writeafunction that draws agridlikethe following:+ - - - - + - - - - +| | || | || | || | |+ - - - - + - - - - +| | || | || | || | |+ - - - - + - - - - +Hint: toprint more than one value on aline, you can printacomma-separated sequence:print '+', '-'If the sequence ends with a comma, Python leaves the line unfinished, so the value printednext appears on thesame line.print '+',print '-'The output ofthese statements is'+ -'.Aprintstatement all by itselfends the current lineand goes tothe next line.2 Based onanexercise inOualline, Practical CProgramming, Third Edition, O’Reilly (1997)