How to measure custom trace lengths between components in KiCad using Python?
Measuring custom trace lengths between components is a task that can benefit from KiCad's Python scripting capabilities. Here's an example script:

```python
import pcbnew

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

# Define the start and end components
start_component_ref = 'U1'
end_component_ref = 'U2'

# Logic to find the traces connected to these components and measure their lengths
# This will involve iterating through the board's tracks and matching them to the components' pads

# Print or process the measured lengths
```

This script requires advanced logic to accurately measure trace lengths between specific components, which might involve complex pathfinding algorithms.