using the import statement the import statement is the most common method for importing module into python this approach is fast and ensures that the entire module is ready for use the following steps get you started using the import statement open the python shell you see the python shell window appear change directories to the downloadable source code directory see the instructions found in the "changing the current python directorysidebar type import mylibrary and press enter python imports the contents of the mylibrary py file that you created in the "creating code groupingssection of the the entire library is now ready for use it' important to know that python also creates cache of the module in the __pycache__ subdirectory if you look into your source code directory after you import mylibrary for the first timeyou see the new __pycache__ directory if you want to make changes to your moduleyou must delete this directory otherwisepython will continue to use the unchanged cache file instead of your updated source code file type dir(mylibraryand press enter you see listing of the module contentswhich includes the sayhello(and saygoodbye(functionsas shown in figure - ( discussion of the other entries appears in the "viewing the module contentsection of the figure - direc tory listing shows that python imports both functions from the module