Is it possible to use Python scripting to retrieve and modify solder paste settings for a module in KiCad?
Yes, Python scripting can be used to retrieve and modify solder paste settings for a module in KiCad. The script provided accesses the pads of module U304, prints their current solder paste margin, and adjusts the setting based on specific criteria:

```python
#!/usr/bin/env python2.7
import sys
from pcbnew import *

filename=sys.argv[1]
pcb = LoadBoard(filename)

# Retrieve and modify solder paste settings
u304 = pcb.FindModuleByReference('U304')
pads = u304.Pads()
for p in pads:
    print p.GetPadName(), ToMM(p.GetLocalSolderPasteMargin())
    id = int(p.GetPadName())
    if id<15: p.SetLocalSolderPasteMargin(0)

pcb.Save("mod_"+filename)
```

This method is particularly useful for PCB designs where precise control of solder paste application is necessary for specific components or pads.