How to move everything in a string after a certain length into a list python

I am trying to build a function that will take everything in a string after 140 characters and move it into a new variable for a second ‘tweet’.

tweetlength = 140
tweet = input("What do you want to tweet: ")
tweet_copy = []
tweet_2 = []

for i in tweet:
    if len(tweet) <= tweetlength:
        print(tweet)
        break
    if len(tweet) >= tweetlength:
        tweet_copy = tweet
        for x in tweet_copy [140, 280]:
            tweet_2.append(x)
            print(tweet_copy + tweet_2)

However I am currently getting an error saying "string indices must be integers". I need to be able to refer to everything within the list with an index value of 140-280 but it seems I can’t do that while it’s a string?

>Solution :

Since you are using python, you don’t have to loop through a string. Your code can be as simple as:

tweetlength = 140
tweet = input("What do you want to tweet: ")
tweet, tweet_2 = (tweet[:tweetlength], tweet[tweetlength:])
print(tweet)
if tweet_2:  # An empty string evaluates as False
    print('Second part')
    print(tweet_2)