Getting the location using Tweepy

问题:

I am trying to figure out how to output the location of the twitter user only if they have it displayed. How would I go about doing that? Right now I have this:

from tweepy import Stream
from tweepy import OAuthHandler
from tweepy.streaming import StreamListener
import time
import json
from HTMLParser import HTMLParser

ckey = ''
csecret = ''
atoken = ''
asecret = ''

class listener(StreamListener):

    def on_status(self, status):
        print status.text
        if status.coordinates:
            print 'coords:', status.coordinates
        if status.place:
            print 'place:', status.place.full_name

        return True

    on_event = on_status

    def on_error(self, status):
        print status
auth = OAuthHandler(ckey, csecret)
auth.set_access_token(atoken, asecret)
twitterStream = Stream(auth, listener())
twitterStream.filter(track=["twerk"])

Edit: it's giving an error for the last line of code. How could I filter the word "twerk" or "miley"

So it's currently outputting a tweet if the tweet consists of the words twerk or miley, but I would like to get the coordinates of that tweet only if they have it displayed. I thought it would be something like tweet = data.coordinates, but that is not working. Any ideas?

回答1:

Don't use string manipulation when you can just load the JSON as a Python object, using json.loads():

import json
from HTMLParser import HTMLParser


def on_data(self, data):
    data = json.loads(HTMLParser().unescape(data))
    tweet = data['text']
    print tweet
    return True

This also gives you access to the other fields of the Tweet object, such as the coordinates:

if data['coordinates']:
    print data['coordinates']

or the place object:

if data.get('place'):
    print data['place']['full_name']

For the streaming API, you may want to not override the on_data() method and instead use the on_event() or on_status() handlers; the default on_data() implementation loads the JSON and passes on a parsed Tweepy object to those handlers:

class listener(StreamListener):

    def on_status(self, status):
        print status.text
        if status.coordinates:
            print 'coords:', status.coordinates
        if status.place:
            print 'place:', status.place.full_name

        return True

    on_event = on_status

    def on_error(self, status):
        print status

I see messages like:

Ainda sonho com uma apresentação de twerk ao vivo  #8BieberManiaNaZonaLivreFM #MTVHottest Justin Bieber
coords: {u'type': u'Point', u'coordinates': [-49.319543, -16.679431]}
place: Goiânia, Goiás

Fly by with the above listener.