How do I decode the Twitter from the Twitter API?

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Python

API

Tweepy

I am running the following code, which gives me the tweets that contain the word cat, however at some points, I get an error

The code is:

import tweepy
from tweepy import Stream
from tweepy import OAuthHandler
from tweepy.streaming import StreamListener
import json
import sentmod as s

#consumer key, consumer secret, access token, access secret.
ckey= "xxxxx"
csecret="xxxx"
atoken="xxxxx"
asecret="xxxxx"

class listener(StreamListener):
    
    def on_data(self, data):
        all_data = json.loads(data)
        tweet = all_data["text"]       
        sentiment_value, confidence = s.sentiment(tweet)
        tweet.encode('utf-8', 'ignore')
        if "RT" in tweet:
            pass
        else:
            tweets=open("tweets.txt","a",encoding="utf-8")
            tweets.write(tweet)
            tweets.write('\n')
            tweets.write(str(sentiment_value))
            tweets.write('\n')
            tweets.write(str(confidence))
            tweets.write('\n\n\n')
            tweets.close()
            print(tweet, sentiment_value, confidence)
            if confidence*100 >= 60:
                output = open("twitter-out.txt","a")
                output.write(sentiment_value)
                output.write('\n')
                output.close()
                return True


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

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

twitterStream = Stream(auth, listener())
twitterStream.filter(track=['Cat'],languages=['en'])  #locations=[]

I get the following error after a few tweets:



print(tweet, sentiment_value, confidence)
UnicodeEncodeError: 'UCS-2' codec can't encode characters in position 44-44: Non-BMP character not supported in Tk

What I have tried:

decoding and encoding with utf-8 and utf-16, but did not work