Can I automate differential pair routing using Python in KiCad?
Automating differential pair routing in KiCad using Python scripting is a challenging task that offers advanced control over PCB design. Here's an example script framework:

```python
import pcbnew

# Load the current board
board = pcbnew.GetBoard()

# Define the differential pair parameters
# Example: Routing differential pair 'DP+' and 'DP-'

# Logic to find the start and end pads for each signal
# Apply routing algorithms to create tracks with controlled impedance, spacing, and length matching

# Save the updated board
board.Save('path/to/save/your/pcb.kicad_pcb')
```

This script requires advanced knowledge of PCB routing and KiCad's API. Differential pair routing involves intricate calculations for impedance control and length matching, making it a sophisticated scripting task.