Turning in toolbox

mbta_finder.py

@@ -1,59 +1,89 @@
 """
-Geocoding and Web APIs Project Toolbox exercise
+Updated March 20, 2016
 
-Find the MBTA stops closest to a given location.
+Find the MBTA stops closest to a given location. Prints the
+closest MBTA stop and the distance from the given place to that stop.
 
-Full instructions are at:
-https://sites.google.com/site/sd15spring/home/project-toolbox/geocoding-and-web-apis
+@author: Erica Lee
 """
 
-import urllib   # urlencode function
-import urllib2  # urlopen function (better than urllib version)
-import json
+import urllib, urllib2,json
+from pprint import pprint
 
 
-# Useful URLs (you need to add the appropriate parameters for your requests)
-GMAPS_BASE_URL = "https://maps.googleapis.com/maps/api/geocode/json"
-MBTA_BASE_URL = "http://realtime.mbta.com/developer/api/v2/stopsbylocation"
+GMAPS_BASE_URL = "https://maps.googleapis.com/maps/api/geocode/json?"
+MBTA_BASE_URL = "http://realtime.mbta.com/developer/api/v2/stopsbylocation?"
 MBTA_DEMO_API_KEY = "wX9NwuHnZU2ToO7GmGR9uw"
 
 
-# A little bit of scaffolding if you want to use it
-
 def get_json(url):
     """
     Given a properly formatted URL for a JSON web API request, return
     a Python JSON object containing the response to that request.
     """
-    pass
+    f = urllib2.urlopen(url)
+    response_text = f.read()
+    response_data = json.loads(response_text)
+
+
+    return response_data["results"][0]["geometry"]["location"]
 
 
 def get_lat_long(place_name):
     """
     Given a place name or address, return a (latitude, longitude) tuple
     with the coordinates of the given place.
-
-    See https://developers.google.com/maps/documentation/geocoding/
-    for Google Maps Geocode API URL formatting requirements.
+
     """
-    pass
+
+    g = {}  
+    g["address"] = place_name
+    g =sorted(g.iteritems())
+
+
+    url = GMAPS_BASE_URL + urllib.urlencode(g)
+
+    coord = get_json(url)
+    return coord
+
+
 
 
 def get_nearest_station(latitude, longitude):
     """
     Given latitude and longitude strings, return a (station_name, distance)
     tuple for the nearest MBTA station to the given coordinates.
 
-    See http://realtime.mbta.com/Portal/Home/Documents for URL
-    formatting requirements for the 'stopsbylocation' API.
     """
-    pass
+    i = {}
+    i['lat'] = latitude
+    i['lon'] = longitude
+    i['api_key'] = MBTA_DEMO_API_KEY
+
+    i = sorted(i.iteritems())
+    url2 = MBTA_BASE_URL + urllib.urlencode(i)
+
+    h = urllib2.urlopen(url2)
+    response_text = h.read()
+    response_data = json.loads(response_text)
+
+    a = response_data["stop"][0]["stop_name"]
+    b = response_data["stop"][0]["distance"]
+
+    return (str(a),str(b))
+
 
 
 def find_stop_near(place_name):
     """
     Given a place name or address, print the nearest MBTA stop and the 
     distance from the given place to that stop.
     """
-    pass
+    coordinates = get_lat_long(place_name).values()
+    stop = get_nearest_station(coordinates[0], coordinates[1])[0]
+    distance = get_nearest_station(coordinates[0], coordinates[1])[1]
+
+    return "%s is %s miles away from %s"%(stop, distance, place_name)
+
 
+print find_stop_near("Fenway Park MA")