pythonyou can find more instructions at downloading and installing the mu editor while the python software runs your programyou'll type the python code into text editor or integrated development environment (ideapplication recommend using mu editor for your ide if you are beginner because it' simple and doesn' distract you with an overwhelming number of advanced options open download the installer for your operating system and then run it by doubleclicking the installer file if you are on macosrunning the installer opens window where you must drag the mu icon to the applications folder icon to continue the installation if you are on ubuntuyou'll need to install mu as python package in that caseopen new terminal window and run pip install mu-editor to install and mu-editor to run it click the instructions button in the python package section of the download page for full instruction details running the mu editor once it' installedlet' start muon windows or laterclick the start icon in the lower-left corner of your screenenter mu in the search boxand select mu when it appears on macosopen the finder windowclick applicationsand then click mu-editor on ubuntupress ctrl-alt- to open terminal window and then enter python - mu the first time mu runsa select mode window appears with the following optionsadafruit circuitpythonbbc micro:bitpygame zeroand python select python you can always change the mode later by clicking the mode button at the top of the editor window you'll be able to enter the code into mu' main window and then saveopenand run your files from the buttons at the top running idle and other editors you can use any number of editors for writing python code the integrated development and learning environment (idlesoftware installs along with pythonand it can serve as second editor if for some reason you can' get mu installed or working let' start idle nowon windows or laterclick the start icon in the lower-left corner of your screenenter idle in the search boxand select idle (python guiintroduction xix