RuntimeError: No active exception to reraise with tweepy

Question

我正在使用 python 代码进行基于 Twitter 的实时情绪分析。它应该可以工作，因为 youtube 上也有一个教程，但在我的电脑上，这是我遇到的错误：

File "<ipython-input-2-9dc468222105>", line 1, in <module>
         runfile('C:/Users/marco/Anaconda3/envs/coinlive/social_functions.py',
 wdir='C:/Users/marco/Anaconda3/envs/coinlive')

File "C:\Users\marco\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py",
 line 710, in runfile
         execfile(filename, namespace)

File "C:\Users\marco\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py",
 line 101, in execfile
         exec(compile(f.read(), filename, 'exec'), namespace)

File "C:/Users/marco/Anaconda3/envs/coinlive/social_functions.py", line 82,
 in <module>
         twitterStream.filter(track=["Donald Trump"])

File "C:\Users\marco\Anaconda3\lib\site-packages\tweepy\streaming.py", line
 450, in filter
         self._start(async)

File "C:\Users\marco\Anaconda3\lib\site-packages\tweepy\streaming.py", line
 364, in _start
         self._run()

File "C:\Users\marco\Anaconda3\lib\site-packages\tweepy\streaming.py", line
 297, in _run
         six.reraise(*exc_info)

File "C:\Users\marco\Anaconda3\lib\site-packages\six.py", line 693, in reraise
         raise value

File "C:\Users\marco\Anaconda3\lib\site-packages\tweepy\streaming.py", line
 266, in _run
         self._read_loop(resp)

File "C:\Users\marco\Anaconda3\lib\site-packages\tweepy\streaming.py", line
 327, in _read_loop
         self._data(next_status_obj)

File "C:\Users\marco\Anaconda3\lib\site-packages\tweepy\streaming.py", line
 300, in _data
         if self.listener.on_data(data) is False:

File "C:/Users/marco/Anaconda3/envs/coinlive/social_functions.py", line 39,
 in on_data
         tweet=" ".join(re.findall("[a-zA-Z]+", tweet))

File "C:\Users\marco\Anaconda3\lib\re.py", line 222, in findall
         return _compile(pattern, flags).findall(string)

TypeError: cannot use a string pattern on a bytes-like object

我认为错误与 tweepy 库有关，我阅读了很多帖子，但没有任何好的结果。

这是我的代码：

import time
from tweepy import Stream
from tweepy import OAuthHandler
from tweepy.streaming import StreamListener
import json
from textblob import TextBlob
import matplotlib.pyplot as plt
import re

"# -- coding: utf-8 --"

def calctime(a):
    return time.time()-a

positive=0
negative=0
compound=0

count=0
initime=time.time()
plt.ion()

ckey='R8adMtTxKPXseiFqFcb7XBGJv'
csecret='rkcxNsg8Q09AiVDgh4bn5GXNpsLP0jLwekqIOkrdkwa1K1h9oc'
atoken='232118221-5SPjlFvC22JBRXODNdNWoEDJwvpvaiKoXAazpAHH'
asecret='rzZ1NMxfgK6IYzTuEI0rMvpK04lJj49tiKe1BaST9bmcT'

class listener(StreamListener):

    def on_data(self,data):
        global initime
        t=int(calctime(initime))
        all_data=json.loads(data)
        tweet=all_data["text"].encode("utf-8")
        #username=all_data["user"]["screen_name"]
        tweet=" ".join(re.findall("[a-zA-Z]+", tweet))
        blob=TextBlob(tweet.strip())

        global positive
        global negative     
        global compound  
        global count

        count=count+1
        senti=0
        for sen in blob.sentences:
            senti=senti+sen.sentiment.polarity
            if sen.sentiment.polarity >= 0:
                positive=positive+sen.sentiment.polarity   
            else:
                negative=negative+sen.sentiment.polarity  
        compound=compound+senti        
        print(count)
        print(tweet.strip())
        print(senti)
        print(t)
        print(str(positive) + ' ' + str(negative) + ' ' + str(compound))


        plt.axis([ 0, 70, -20,20])
        plt.xlabel('Time')
        plt.ylabel('Sentiment')
        plt.plot([t],[positive],'go',[t] ,[negative],'ro',[t],[compound],'bo')
        plt.show()
        plt.pause(0.0001)
        if count==200:
            return False
        else:
            return True

    def on_error(self,status):
        print(status)


auth=OAuthHandler(ckey,csecret)
auth.set_access_token(atoken,asecret)

twitterStream=  Stream(auth, listener(count))
twitterStream.filter(track=["Donald Trump"])

Answer 1

您正在对字符串进行编码

tweet=all_data["text"].encode("utf-8")

然后尝试运行 re.findall就可以了：

tweet=" ".join(re.findall("[a-zA-Z]+", tweet))

尝试不调用编码

RuntimeError: No active exception to reraise with tweepy

RuntimeError: No active exception to reraise with tweepy

python

twitter

tweepy

sentiment-analysis