Python script to get lat/lon of all towns in England

gistfile1.py

#Needs Python Wikipedia Robot Framework
import wikipedia
import sys

p=wikipedia.Page('en','List_of_towns_in_England')
town_pages=p.linkedPages()[7:-9]

class LatLonError(ValueError):
	pass

def infobox_latlon(info):
	for param in info:
		if param.startswith('latitude'):
			lat = float(param.split('=')[1].strip())
		elif param.startswith('longitude'):
			lon = float(param.split('=')[1].strip())
	try:
		return lat,lon
	except NameError:
		raise LatLonError("Could not get Lat/Lon")
		

for town_page in town_pages:
	if town_page.isRedirectPage():
		town_page = town_page.getRedirectTarget()
	templates = dict(town_page.templatesWithParams())
	try:
		place_info = templates['Infobox UK place']
		lat, lon = infobox_latlon(place_info)
		print lat, lon, town_page.titleForFilename()
	except (LatLonError, KeyError):
		sys.stderr.write('Could not parse %s\n' % town_page.titleForFilename())