tweepy Streaming API：全文

Question

我正在使用 tweepy 流 API 来获取包含特定主题标签的推文。我面临的问题是我无法从 Streaming API 中提取推文的全文。只有 140 个字符可用，之后会被截断。

代码如下：

auth = tweepy.OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET)
auth.set_access_token(ACCESS_TOKEN, ACCESS_TOKEN_SECRET)
api = tweepy.API(auth)


def analyze_status(text):

    if 'RT' in text[0:3]:
        return True
    else:
        return False

    class MyStreamListener(tweepy.StreamListener):

    def on_status(self, status):

    if not analyze_status(status.text):

        with open('fetched_tweets.txt', 'a') as tf:
            tf.write(status.text.encode('utf-8') + '\n\n')

        print(status.text)

    def on_error(self, status):
    print("Error Code : " + status)

    def test_rate_limit(api, wait=True, buffer=.1):
        """
        Tests whether the rate limit of the last request has been reached.
        :param api: The `tweepy` api instance.
        :param wait: A flag indicating whether to wait for the rate limit reset
                 if the rate limit has been reached.
        :param buffer: A buffer time in seconds that is added on to the waiting
                   time as an extra safety margin.
        :return: True if it is ok to proceed with the next request. False otherwise.
        """
        # Get the number of remaining requests
        remaining = int(api.last_response.getheader('x-rate-limit-remaining'))
        # Check if we have reached the limit
        if remaining == 0:
        limit = int(api.last_response.getheader('x-rate-limit-limit'))
        reset = int(api.last_response.getheader('x-rate-limit-reset'))
        # Parse the UTC time
        reset = datetime.fromtimestamp(reset)
        # Let the user know we have reached the rate limit
        print "0 of {} requests remaining until {}.".format(limit, reset)

        if wait:
            # Determine the delay and sleep
            delay = (reset - datetime.now()).total_seconds() + buffer
            print "Sleeping for {}s...".format(delay)
            sleep(delay)
            # We have waited for the rate limit reset. OK to proceed.
            return True
        else:
            # We have reached the rate limit. The user needs to handle the rate limit manually.
            return False

        # We have not reached the rate limit
        return True

    myStreamListener = MyStreamListener()
    myStream = tweepy.Stream(auth=api.auth, listener=myStreamListener,
                             tweet_mode='extended')

    myStream.filter(track=['#bitcoin'], async=True)

有人有解决办法吗？

Answer 1

tweet_mode=extended 在此代码中无效，因为 Streaming API 不支持该参数。如果推文包含较长的文本，它将在 JSON 响应中包含一个名为 extended_tweet 的附加对象，该对象又将包含一个名为 full_text 的字段。

在这种情况下，您需要像 print(status.extended_tweet.full_text) 这样的东西来提取较长的文本。

Answer 2

Twitter 流中有可用的布尔值。当消息包含超过 140 个字符时，'status.truncated' 为 True。只有这样，“extended_tweet”对象才可用：

        if not status.truncated:
            text = status.text
        else:
            text = status.extended_tweet['full_text']

这仅在您流式传输推文时有效。当您使用 API 方法收集较旧的推文时，您可以使用以下方法：

tweets = api.user_timeline(screen_name='whoever', count=5, tweet_mode='extended')
for tweet in tweets:
    print(tweet.full_text)

此全文字段包含所有推文的文本，无论是否截断。

Answer 3

您必须像这样启用扩展推文模式：

s = tweepy.Stream(auth, l, tweet_mode='extended')

然后您可以打印扩展推文，但请记住，由于 Twitter API，您必须确保扩展推文存在，否则会引发错误

l = listener()

class listener(StreamListener):
    def on_status(self, status):
        try:
            print(status.extended_tweet['full_text'])
        except Exception as e:
            raise
        else:
            print(status.text)
        return True
    def on_error(self, status_code):
        if status_code == 420:
            return False

为我工作。

Answer 4

基于@AndyPiper 的answer，您可以通过try/except 来检查推文是否存在：

  def get_tweet_text(tweet):
    try:
      return tweet.extended_tweet['full_text']
    except AttributeError as e:
      return tweet.text

或检查内部 json：

  def get_tweet_text(tweet):
    if 'extended_tweet' in tweet._json:
      return tweet.extended_tweet['full_text']
    else:
      return tweet.text

请注意，extended_tweet 是一个字典对象，因此“tweet.extended_tweet.full_text”实际上不起作用，会引发错误。

Answer 5

除了上一个答案：在我的情况下，它只能用作 status.extended_tweet['full_text']，因为 status.extended_tweet 只不过是一本字典。

Answer 6

这对我有用：

status = tweet if 'extended_tweet' in status._json: status_json = status._json['extended_tweet']['full_text'] elif 'retweeted_status' in status._json and 'extended_tweet' in status._json['retweeted_status']: status_json = status._json['retweeted_status']['extended_tweet']['full_text'] elif 'retweeted_status' in status._json: status_json = status._json['retweeted_status']['full_text'] else: status_json = status._json['full_text'] print(status_json)'

https://github.com/tweepy/tweepy/issues/935 - 从这里实现，需要改变他们的建议，但想法保持不变

Answer 7

我使用以下功能：

def full_text_tweeet(id_):
    status = api.get_status(id_, tweet_mode="extended")
    try:
        return status.retweeted_status.full_text
    except AttributeError:  
        return status.full_text

然后在我的列表中调用它

 tweets_list = []
    # foreach through all tweets pulled
    for tweet in tweets:
        # printing the text stored inside the tweet object
        tweet_list = [str(tweet.id),str(full_text_tweeet(tweet.id))]
        tweets_list.append(tweet_list)

Answer 8

试试这个，这是最简单最快的方法。

def on_status(self, status):
if hasattr(status, "retweeted_status"):  # Check if Retweet
    try:
        print(status.retweeted_status.extended_tweet["full_text"])
    except AttributeError:
        print(status.retweeted_status.text)
else:
    try:
        print(status.extended_tweet["full_text"])
    except AttributeError:
        print(status.text)

Visit the link it will give you the how extended tweet can be achieve