I believe that many of you have dealt with such a problem. One day you are working in the text editor, saving the document and closing it. And the next day you are re-reading the text and realizing that one of the previous versions was better but there is no way to get it back. This thing can be easily handled by the version control system (for example, git), but it’s used mostly by the developers and not the ordinary people who work with texts. In this mission you’ll help the latter by creating a text editor prototype that supports the version control system, which will allow to save different versions...
Your task is to create 2 classes: Text and SavedText. The first will works with texts (adding, font changing, etc.), the second will control the versions and save them.
Class Text should have the next methods:
Class SavedText should have the next methods:
In this mission you can use the
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin --ff
checkio install-plugin --chromium