How to use an external text editor to create script (interact) and render it in a browser

edit

Another possiblity, which is maybe Firefox specific, is to use a browser add-on that makes it possible to edit editboxes in external editors. There was 'mozex' extension that did that, but now I am using It's All Text! Firefox add-on which creates a small 'edit' button next to each Sage input cell, which opens edits in external gvim editor. This can give you also python syntax highlighting.

I don't know how to do precisely what you asked, but I often write code in a separate file and attach it to a notebook cell (just write e.g. "attach path/to/filename.sage"). Then the notebook session knows all the functions I've defined in the file.

Hopefully this will work for you,

Niles

In the worksheet you can upload and/or create data files via the "data" dropdown. You can access the files there using

load DATA+"your filename"

If the file is a ".py" or a ".sage" file, you can edit it in your browser, with syntax highlighting. Alternatively, you can use your own editor and reupload the file every time you make changes.