figure - converting string to number is easy using the int(and float(commands you can convert numbers to string as well by using the str(command for exampleif you type mystr str( and press enteryou create string containing the value " and assign it to mystr figure - shows this type of conversion and the test you can perform on it the point is that you can go back and forth between strings and numbers with great ease later demonstrate how these conversions make lot of seemingly impossible tasks quite doable figure - it' possible to convert numbers to strings as well working with dates and times dates and times are items that most people work with quite bit society bases almost everything on the date and time that task needs to be or was completed we make appointments and plan events for specific dates and times most of our day revolves around the clock because of the timeoriented nature of humansit' good idea to look at how python deals with interacting with dates and time (especially storing these values for later useas with everything elsecomputers understand only numbers -the date and time don' really exist to work with dates and timesyou need to perform special task in python when writing computer bookschicken-and-egg scenarios always ariseand this is one of them to use dates and timesyou must issue special import