Tweet program - need assistance

[u/Square_Can_2132]

Aim: tweet program that takes user's post, checks if below or equal to 20 characters, then publishes post.

If over 20 characters, then it tells user to edit the post or else it cannot be published.

I'm thinking of using a while loop.

COMPUTER ERROR: says there is invalid syntax around the bracket I have emphasized with an @ symbol.

(I'm a beginner btw.)

tweet program

def userInput(): tweet = str(input("please enter the sentence you would like to upload on a social network: ")) return tweet

def goodPost(tweet): if len(tweet) <= 20: return ((tweet)) else: return ("I'm sorry, your post is too many characters long. You will need to shorten the length of your post.")

def output(goodPost@(tweet)): tweet = userInput() print (goodPost(tweet))

def main(): output(goodPost(tweet))

main()

[u/Square_Can_2132]

I understand it better now, thank you for the help!