How to Fix "Blender Python Editor Doesn’t Update Real-time During Script Execution"

If Blender’s Python Editor isn’t updating in real-time during script execution, it could be related to refresh settings, blocking operations, or viewport settings.

Here’s how to fix it: First, check if your script is blocking Blender’s interface during execution.

Some Python operations can block the main Blender thread, especially if they are computationally intensive or take a long time to execute.

This can cause the interface to freeze or not update.

To resolve this, try breaking up the script into smaller parts and using bpy.context.view_layer.update() to force a refresh after each operation.

If your script modifies objects or data but does not update the viewport, make sure that bpy.ops.wm.redraw_timer() is called at appropriate intervals to trigger the viewport refresh.

If the script runs in the background without triggering updates, you might not see the changes immediately in the viewport.

Another possibility is that the scene or view layer is set to “local view” or an isolated mode, preventing the script updates from being visible.

Ensure that the scene is properly visible by going to View > Viewport and checking the visibility settings.

Additionally, check whether Auto Run Python Scripts is enabled in Blender’s preferences.

Go to Edit > Preferences > File and make sure that the Auto Run Python Scripts option is checked to allow for real-time updates of scripts.

If the script involves asynchronous tasks or external data, you may need to manage synchronization to update the viewport correctly.

Finally, if you’re running the script from an external file or add-on, ensure the script is correctly integrated into Blender and that the external process doesn’t block the interface.

By following these steps, you should be able to fix the issue where Blender's Python Editor doesn't update in real-time.