Is it possible to script the clearing of all PCB tracks for a redesign using Python in KiCad?
Yes, it's possible to script the clearing of all PCB tracks for a redesign using Python in KiCad. The given script efficiently removes all existing tracks from the PCB, preparing it for a fresh layout:

```python
import pcbnew

board = pcbnew.GetBoard()
for t in board.GetTracks():
    board.Delete(t)

pcbnew.Refresh()
```

This approach is particularly helpful when you need to reset the routing on a PCB without manually deleting each track, saving time and effort in the design process.