why can’t write in the cell?
What do you mean?
Editing is disabled in cells that you are not supposed to modify.
This issue could arise for several reasons:
- Cell Type: The cell might be set to a Markdown type instead of Code. You can check this by selecting the cell and looking at the toolbar, where the cell type is usually indicated.
- Notebook State: The notebook might be in a non-editable state. This can happen if the notebook is locked or the kernel is not active. If this is the case, you might need to restart the kernel or check if they have the necessary permissions to edit the notebook.
- Readonly Cells: Some cells might be set as read-only, especially in instructional notebooks like those from Coursera. If that’s the case, you may not be allowed to modify them.
- Browser/Environment Issue: There could be a glitch with the browser or the Jupyter environment. Refreshing the page, clearing the cache, or trying a different browser might help.
- Notebook Loading: If the notebook hasn’t fully loaded, or if there’s a lot of data processing happening in the background, the interface might temporarily be unresponsive.