wu_retrieve_cams.py

import os
import simplejson as json
import urllib, urllib2
from datetime import datetime

# Generate your own key from..
# http://www.wunderground.com/weather/api/
API_KEY = '<your api key here>'

def get_webcams(area_code, api_key):
  
  area_code = str(area_code)
  
  # Make a request to the Weather Underground API
  url = ('http://api.wunderground.com/api/'+api_key+
         '/webcams/q/'+area_code+'.json')
  f = urllib2.urlopen(url)
  reply = json.loads(f.read())
  f.close()

  # Check that the request was successful
  try:
    webcams = reply['webcams']
  except:
    print reply['error']
    return
  
  # Get the current time as a string
  timestamp = datetime.now()
  timestamp = timestamp.strftime('%Y-%m-%d %H:%M:%S')
  
  # Create a folder to store the captures
  folderpath = os.path.join(area_code,timestamp)
  os.makedirs(folderpath)

  # For each webcam in the reply, get the source url
  for cam in webcams:
    camid = cam['camid']
    url = cam['CURRENTIMAGEURL']
    
    print camid
    # Retrieve the image and save it to a file
    filepath = os.path.join(area_code,timestamp,camid)
    urllib.urlretrieve(url, filepath)

if __name__=='__main__':
    get_webcams(60120, API_KEY)