將值添加到字典中，int是不可迭代的

Question

我試圖向字典中添加新值或增加值（取決於是否找到該鍵），並且正在運行錯誤消息他說：

Traceback (most recent call last): File "C:/Users/james/Desktop/names.py", line 30, in scores(boys) File "C:/Users/james/Desktop/names.py", line 14, in scores totals.update(map(score,1)) TypeError: 'int' object is not iterable

行拋出的問題是：

totals.update(map(score,1)) 

和完整的代碼是：

import csv 
def scores(names): 
    totals = {} 
    values = {"a": 1, "b": 3, "c": 3, "d": 2, "e": 1, "f": 4, "g": 2, "h": 4, "i":1, "j": 8, "k": 5, "l": 1, "m": 3, "n": 1, "o": 1, "p": 3, "q": 10, "r": 1, "s": 1, "t": 1, "u": 1, "v":4, "w": 4, "x": 8, "y": 4, "z": 10} 
    score = 0 
    for name in names: 
     for letter in name: 
      letter = letter.lower() 
      if (letter in values): 
       score = score + int(values.get(letter)) 
     if (score in totals): 
      totals.update(map(score,score.get(score)+1)) 
      #presumably this would throw an error 
     else: 
      totals.update(map(score,1)) 
      #this is the line throwing the error 
     score = 0 
    print (totals)  

boys = set() 
girls = set() 
with open ("names.txt") as file: 
    reader = csv.reader(file, delimiter=' ', quotechar='|') 
    for row in reader: 
     row = row[0].split(",") 
     if (row[0]=="B"): 
      boys.add(row[1]) 
     else: 
      girls.add(row[1]) 
print (len(boys)) 
print (len(girls)) 
scores(boys) 
scores(girls) 

對於上下文，我有一個巨大的csv蘇格蘭兒童的名字1974-2016儲存爲names.txt，我試圖得到他們不同的拼字比分的頻率。我已經看了this question並從中鏈接的答案，但，盡我所知，我沒有真正試圖遍歷score

Answer 1

這一塊不行，因爲map需要一個迭代作爲第二個參數（你不需要map的一切都在這裏，map適用的功能，可迭代的所有元素）

if (score in totals): 
     totals.update(map(score,score.get(score)+1)) 
    else: 
     totals.update(map(score,1)) 

你完全虛假的代碼背後（不得不說:)），你要計算多少次給定得分達到了，所以你需要：

import collections 
totals = collections.Counter() 

然後簡單地：

totals[score] += 1