Python類型錯誤：int對象不是可迭代

Question

我不確定在那裏我得到這個錯誤：

Traceback (most recent call last): 
    File "C:/Users/Coscio/PycharmProjects/unigram/letterHist.py", line 78, in <module> 
    main() 
    File "C:/Users/Coscio/PycharmProjects/unigram/letterHist.py", line 74, in main 
    bars(words) 
    File "C:/Users/Coscio/PycharmProjects/unigram/letterHist.py", line 62, in bars 
    init(words, lst) 
    File "C:/Users/Coscio/PycharmProjects/unigram/letterHist.py", line 38, in init 
    freqLegend(words,val, lst) 
    File "C:/Users/Coscio/PycharmProjects/unigram/letterHist.py", line 54, in freqLegend 
    freqLegend(words, val/1.5, counter-1) 
    File "C:/Users/Coscio/PycharmProjects/unigram/letterHist.py", line 53, in freqLegend 
    back((max(lst)*1000)/10) 
TypeError: 'int' object is not iterable 

我認爲它在我服用LST的最大我freqLegend功能發生和除以10但我沒有在這一點迭代任何事情，我不能找到爲什麼我得到這個錯誤。

from letterFreq import * 
from turtle import * 


    def init(words, lst): 

     val = max(lst) 
     print(val) 
     speed(0) 
     setup (width=600, height=600, startx=0, starty=0) 
     up() 
     lt(180) 
     forward(200) 
     lt(90) 
     forward(100) 
     lt(90) 
     down() 
     forward(400) 
     up() 
     forward(-400) 
     lt(90) 
     down() 
     forward(val*1000) 
     up() 
     back(val*1000+20) 
     rt(90) 
     forward(200) 
     write("A B C D E F G H I J K L M N O P Q " 
       "R S T U V W X Y Z", True, align="center") 
     goto(-200,-100) 
     lt(90) 
     forward((val*1000)/2) 
     lt(90) 
     forward(60) 
     write("Frequency", True, align="center") 
     rt(90) 
     goto(-200,153) 
     freqLegend(words,val, lst) 

    def freqLegend(words, val, lst, counter = 10): 

     if counter == 0: 
      goto(-200,-100) 
      return 
     elif counter > 0: 
      up() 
      lt(90) 
      down() 
      forward(30) 
      write(round(val, 3)) 
      back(30) 
      rt(90) 
      back((max(lst)*1000)/10) 
      freqLegend(words, val/1.5, counter-1) 

    def bars(words): 
     lstFreq = [] 
     for letters in letterFreq(words): 
      lstFreq.append(letterFreq(words)[letters]) 

     lst = lstFreq 
     init(words, lst) 
     for i in lst: 
      down() 
      forward(i*1000) 
      rt(90) 
      forward(14) 
      left(90) 
      back(i*1000) 

    def main(): 
     filename = "data/very_short.csv" 
     words = readWordFile(filename) 
     bars(words) 
     input("enter to close") 

    if __name__ == '__main__': 
     main() 

Answer 1

你錯過了freqLegend的參數，所以你得到的行爲是你不期望的。你只有三個參數：

freqLegend(words, val/1.5, counter-1) 

在哪裏我想你的意思

freqLegend(words, val/1.5, lst, counter-1) 

而且，你得到一個錯誤，這不是可迭代的原因是因爲max()實際上遍歷列表。由於將參數counter-1作爲參數lst傳遞給該函數，因此第二次調用lst是一個int，它無法遍歷來查找最大值。