錯誤：'str'對象不可調用python

Question

我一直堅持處理python中的錯誤，並一直在尋找一段時間來修復它，但無濟於事。

這裏是我得到

Traceback (most recent call last): 
    File "C:\Users\wood\Desktop\Software design\Program 4\program3_4QuinnWood.py", line 62, in <module> 
    main() 
    File "C:\Users\wood\Desktop\Software design\Program 4\program3_4QuinnWood.py", line 23, in main 
    displayOutput(letterCount,middleCharacter,spaceAmount,aReplace) 
    File "C:\Users\wood\Desktop\Software design\Program 4\program3_4QuinnWood.py", line 56, in displayOutput 
    print('Number of letters:'(letterCount)) 
TypeError: 'str' object is not callable 

這是迄今爲止我所編寫的代碼錯誤。

def main(): 

    while True: 
     sentence= userInput() 
     letterCount= characterCount(sentence) 
     middleCharacter= middleLetter(sentence) 
     spaceAmount= spaceCount(sentence) 
     aReplace= letterReplace(sentence) 
     displayOutput(letterCount,middleCharacter,spaceAmount,aReplace) 


def userInput(): 
    sentence = str(input('Enter a sentence at least 10 letters long, or type STOP to quit:')) 
    if sentence == 'STOP': 
     quit() 
    return sentence 

def characterCount(sentence): 
    letterCount = len(sentence) - sentence.count(' ') 
    if letterCount < 10: 

     print('Sorry that is less than 10 letters') 


def middleLetter(sentence): 
    sentence = len(sentence)/2 
    middleCharacter = [sentence +1] 


def spaceCount(sentence): 
    spaceAmount = sentence.count(' ') 



def letterReplace(sentence): 
    aReplace= sentence.replace("a", "&") 



def displayOutput(letterCount,middleCharacter,spaceAmount,aReplace): 
    print('Number of letters:'(letterCount)) 
    print('Middle letter:'(middleCharacter)) 
    print('Spaces counted:'(spaceAmount)) 
    print('Sentence with letter replaced:'(aReplace)) 

main() 

該解決方案可能是簡單的，我俯瞰，但任何幫助，將不勝感激。

Answer 1

錯誤狀態str object not callable這意味着您正在處理字符串，如函數或任何可在代碼中調用的字符串()。

的問題是在打印報表displayOutput()功能

更正代碼

def displayOutput(letterCount,middleCharacter,spaceAmount,aReplace): 
    print('Number of letters:',letterCount) 
    print('Middle letter:',middleCharacter) 
    print('Spaces counted:',spaceAmount) 
    print('Sentence with letter replaced:',aReplace) 

main()