type( note the name in the last result is floatnot real or decimalcoming from the term "floating point"for reasons that will be explained laterin floatsdivisionmixed types (page enter type('hello'in your last result you see another abbreviationstr rather than string enter type([ ]strings and lists are both sequences of parts (characters or elementswe can find the length of that sequence with another function with the abbreviated name len try both of the followingseparatelyin the shelllen([ ]len('abcd'some functions have no parametersso nothing goes between the parentheses for examplesome types serve as no-parameter functions to create simple value of their type try list(you see the way an empty list is displayed functions may also take more than one parameter try max( abovemax is short for maximum some of the names of types serve as conversion functions (where there is an obvious meaning for the conversiontry each of the followingone at timein the shellstr( int(' 'note the presence and absence of quotes an often handy shell featurean earlier shell line may to copied and edited by clicking anywhere in the previously displayed line and then pressing the return (or enterkey for instance you should have entered several lines starting with len click on any onepress returnand edit the line for different test integer arithmetic addition and subtraction we start with the integers and integer arithmeticnot because arithmetic is excitingbut because the symbolism should be mostly familiar of course arithmetic is important in many casesbut python is probably more often used to manipulate text and other sorts of dataas in the sample program in running sample program (page python understands numbers and standard arithmetic for the whole section on integer arithmeticwhere you see set-off line in typewriter fonttype individual lines at the prompt in the python shell press enter after each line to get python to respond beginning with python