print('what is your name?'lines and are calls to the print(function value between the parentheses in function call is an argument the argument on line ' print(function call is 'hello world!the argument on line ' print(function call is 'what is your name?this is called passing the argument to the print(function in this bookfunction names have parentheses at the end this makes it clear that print(means this book is talking about function named print()and not variable named print this is like the quotes around the number ' telling python that you are talking about string ' and not an integer the input(function myname input(line is an assignment statement with variable (mynameand function call (input()when input(is calledthe program waits for the user to enter text the text string that the user enters becomes the value that the function call evaluates to function calls can be used in expressions anywhere value can be used the value that the function call evaluates to is called the return value (in fact"the value function call returnsmeans the same thing as "the value function call evaluates toin this casethe return value of the input(function is the string that the user typed in-their name if the user typed in "albert"the input(function call evaluates to the string 'albertthe evaluation looks like thismyname input( myname 'albertthis is how the string value 'albertgets stored in the myname variable using expressions in function calls print('it is good to meet youmynamethe last line is another print(function call the expression 'it is good to meet youmyname in between the parentheses of print(howeverarguments are always single values python will first evaluate this expression and then pass that value as the argument if 'albertis stored in mynamethe evaluation looks like this