Any gotchas in saving Textual objects?

[leemthai]

In my app the user can edit a Tree structure. I would like to make the changes permanent i.e. the next time the app loads, the edits get loaded back.

I don't really know anything about object persistence in Python. Can I just pickle the whole Tree object, for instance? Or is it bad practice to save entire Python objects out ? Maybe better to suck the node data out and save as JSON or similar?

Cheers,

[github-actions[bot]]

We found the following entries in the FAQ which you may find helpful:

• Does Textual support images?
• How can I select and copy text in a Textual app?

Feel free to close this issue if you found an answer in the FAQ. Otherwise, please give us a little time to review.

This is an automated reply, generated by FAQtory

[willmcgugan]

Widgets can't be reliably pickled. You should keep the data independent from your widget, and save and restored that. JSON is a good format for such things...