try typing or loading (rememberit' python - filename pythis file into the interactive interpreter thenenter help(pointat the python prompt you should see nicely formatted documentation for the classas shown in the following screenshotmodules and packages nowwe know how to create classes and instantiate objectsbut how do we organize themfor small programswe can just put all our classes into one file and add little script at the end of the file to start them interacting howeveras our projects growit can become difficult to find the one class that needs to be edited among the many classes we've defined this is where modules come in modules are simply python filesnothing more the single file in our small program is module two python files are two modules if we have two files in the same folderwe can load class from one module for use in the other module for exampleif we are building an -commerce systemwe will likely be storing lot of data in database we can put all the classes and functions related to database access into separate file (we'll call it something sensibledatabase pythenour other modules (for examplecustomer modelsproduct informationand inventorycan import classes from that module in order to access the database