on macosopen the finder window and click applications python idle on ubuntuselect applicationsaccessoriesterminal and then enter idle (you may also be able to click applications at the top of the screenselect programmingand then click idle on the raspberry piclick the raspberry pi menu button in the top-left cornerthen click programming and python (idleyou can also select thonny python ide from under the programming menu there are several other free editors you can use to enter and run python codesuch asthonnya python ide for beginnersat pycharm community editiona python ide used by professional developersat installing python modules most of the programs in this book only require the python standard librarywhich is installed automatically with python howeversome programs require third-party modules such as pyperclipbextplaysoundand pyttsx all of these can be installed at once by installing the bigbookpython module for the mu editoryou must install the -alpha version (or lateras of you can find this version at the top of the download page at sion of musection after installationclick the gear icon in the lower-left corner of the window to bring up the mu administration window select the third party packages tabenter bigbookpython into the text fieldand click ok this installs all of the third-party modules used by the programs in this book for the visual studio code or idle editoropen the editor and run the following python code from the interactive shellimport ossys os system(sys executable - pip install --user bigbookpython' the number appears after the second instruction if everything worked correctly otherwiseif you see an error message or another numbertry running the following instructionswhich don' have the --user optionimport ossys os system(sys executable - pip install bigbookpython' xx introduction