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

[abhisingh007224]

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

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

positive=0
negative=0
compound=0

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

import test

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

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"])