The micro:bit Python Editor can be translated into a growing number of languages. To view and select the languages, click on the globe icon button. From the globe dropdown, you can also find more information on adding a translation of your own.
The Micro:bit Educational Foundation uses a community translation service called Crowdin to manage the translations. When you are logged in, you will find the Python Editor translations ie under apps/python-editor.
Selecting the en.json file in your language will bring up the list of English source strings for you to translate. Once the strings are proofread and verified they can be added to the editor.
Periodically the team will update the editor with new translations. If you want to know more about the process head to microbit.org/translate or contact a member of the team via CrowdIn messaging or open a support ticket.