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Here is my toolbox #18

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33 changes: 28 additions & 5 deletions mbta_finder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
import urllib # urlencode function
import urllib2 # urlopen function (better than urllib version)
import 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"
Expand All @@ -25,7 +25,11 @@ 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


def get_lat_long(place_name):
Expand All @@ -36,7 +40,12 @@ def get_lat_long(place_name):
See https://developers.google.com/maps/documentation/geocoding/
for Google Maps Geocode API URL formatting requirements.
"""
pass
place_name = place_name.replace(" " , "%20")
url = GMAPS_BASE_URL + "?address=" + place_name
response_data = get_json(url)
lat = response_data["results"][0]["geometry"]["location"]["lat"]
lng = response_data["results"][0]["geometry"]["location"]["lng"]
return lat, lng


def get_nearest_station(latitude, longitude):
Expand All @@ -47,13 +56,27 @@ def get_nearest_station(latitude, longitude):
See http://realtime.mbta.com/Portal/Home/Documents for URL
formatting requirements for the 'stopsbylocation' API.
"""
pass
url = "http://realtime.mbta.com/developer/api/v2/stopsbylocation?api_key=wX9NwuHnZU2ToO7GmGR9uw&lat=%s&lon=%s&format=json" % (str(latitude), str(longitude))
response_data = get_json(url)
try:
station_name = str(response_data["stop"][0]["parent_station_name"])
distance = float(response_data["stop"][0]["distance"])
except IndexError:
station_name = "Out of Range"
distance = "Out of Range"


return station_name, distance


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
lat, lng = get_lat_long(place_name)
station_name, distance = get_nearest_station(lat, lng)
return station_name, distance


print find_stop_near("1000 Olin Way Needham Massachusetts")