Coursera Python Assignment的输出无效

Question

我正在为Everybody流做Coursera Python，而且我坚持分配10.2。我的输出无效。这是作业的要求：

  

编写一个程序来读取mbox-short.txt并找出   每天按小时分发每条消息。你可以拉   通过查找时间然后从“从”行开出小时   使用冒号第二次拆分字符串。

From stephen.marquard@uct.ac.za Sat Jan  5 09:14:16 2008

     

累积每小时的计数后，打印出来   计数，按小时排序，如下所示。

这是我的代码：

name = raw_input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"
handle = open(name)
counts = dict()
lst = list()

for line in handle:
    line = line.rstrip()
    if not line.startswith('From '):
        continue
    words = line.split()
    words = words[5]
    words = words.split(":")
    for word in counts:
        counts[word] = counts.get(word, 0) + 1

lst = list()
for key, val in counts.items():
    lst.append((key, val))

lst.sort()

print lst

让我知道我做错了什么。任何建议或提示都表示赞赏。

Answer 1

我认为你在内循环中迭代错误的东西：它应该是for word in words，而不是for word in counts。

Answer 2

name = raw_input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"

handle = open(name)

hours = dict()

for line in handle:
   if line.startswith("From "):

    hour = line.split()[5].split(':')[0] 

    hours[hour] = hours.get(hour, 0) + 1

for key, value in sorted(hours.items(), None):
    print key, value

Answer 3

name = input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"
handle = open(name)


counts = {}

for line in handle:
   if not line.startswith("From "):continue

   time = line.split()
   time = time[5]
   hour = time.split(':')
   hour = hour[0] 

   counts[hour] = counts.get(hour, 0) + 1


for k, v in sorted(counts.items()):

    print (k,v)

Answer 4

counts = dict()
for line in handle:
if line.startswith ('From '):
    words = line.split()
    hour=words[5].split(':')
    counts[hour[0]]= counts.get(hour[0],0)+1
lst=list()
for key, val in counts.items():
    lst.append((key,val))
lst=sorted(lst)
for a,b in lst:
    print (a,b)

Answer 5

name =input("Enter file:")
if len(name) < 1: 
    name = "mbox-short.txt"
handle = open(name)

counts = dict()

for line in handle:
    if line.startswith("From "):
        time = line.split()[5].split(":")
        counts [time[0]] = counts.get(time[0], 0) + 1

#print sorted( [ (v,k) for k,v in counts.items()] )

list = list()

for key, value in counts.items():
    list.append( (key,value) )
list.sort()

for hour, counts in list:
    print (hour, counts)

Answer 6

file = open('words.txt')
dic = dict()
lst = list()


for line in file :
    line = line.rstrip()
    if not line.startswith('From '):
        continue

    words = line.split()
    words= words[5].split(':')

    words = words[0]


    dic[words] = dic.get(words,0)+1

for k,v in dic.items():
    lst.append((k,v))
lst.sort()
for k,v in lst:
    print(k,v)

Answer 7

name = input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"
handle = open(name)
g={}
for line in handle :
    if not line.startswith('From'): continue
    werds=line.split()[5:6]
    for werd in werds :
      we=werd.split(':')[0]
      g[we]=g.get(we,0)+1
lst=list()
for v,k in g.items() :
    new=(v,k)
    lst.append(new)
lst=sorted(lst)
for v,k in lst :
    print(v,k)

Answer 8

name = input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"
handle = open(name)
one = dict()
for line1 in handle:
    if line1.startswith("From "):
        lst1 = line1.split()
        lst2 = lst1[5].split(":")
        word = lst2[0]
        one[word] = one.get(word,0) + 1
lst3 = list()
for k,v in one.items():
    tup = (k,v)
    lst3.append(tup)
lst3 = sorted(lst3,)
for k,v in lst3:
    print(k,v)

Answer 9

name = input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"
handle = open(name)
h = dict()
for line in handle:
    if line.startswith('From '):
        l = line.split()[5].split(':')[0]
        h[l] = h.get(l, 0) +1
  
for k,v in sorted(h.items(), None):
    print(k,v)

Answer 10

这对我有用：-

打开文件

name = input("Enter file:")
if len(name) < 1 : name = "mbox-short.txt"
handle = open(name)

lst = list()
counts = dict()

分割文件的每一行以获取单词，然后将单词排在第六位，然后在该第六个单词的第一个字母中将其用'：'分隔，并将其附加到列表中

for lines in handle:
    if not lines.startswith('From '): continue
    words = lines.split()
    words = words[5]
    words = words.split(':')
    lst.append(words[0])

现在计数字母出现在不同的编号。的时间

for i in lst:
    counts[i] = counts.get(i,0) + 1

最后按键（此处为时间）对它们进行排序

for k, v in sorted(counts.items()):
    print(k,v)

Answer 11

name = input("Enter file: ")
if len(name) < 1:
    name = "mbox-short.txt"

handle = open(name)
hours = dict()

for line in handle:
    # Skipping lines we don't need
    if not line.startswith("From "): 
        continue
    words = line.split()
    # Finding text in the line that we need
    time = words[5]                  
    time = time.split(":")
    hour_time = time[0]
    # Adding to the dictionary and checking if it already there
    hours[hour_time] = hours.get(hour_time, 0) + 1 

#Sorting dictionary using sorted() method
hours_sorted = sorted(hours.items())
for key, value in sorted(hours.items()):
    print(key, value)

Answer 12

name = raw_input（＆＃34;输入文件：＆＃34;） 如果len（名字）＆lt; 1：name =＆＃34; mbox-short.txt＆＃34;

handle = open（name）

hours = dict（）

句柄中的

行：    如果line.startswith（＆＃34; From＆＃34;）：

hour = line.split()[5].split(':')[0] 

hours[hour] = hours.get(hour, 0) + 1

表示键，值为sorted（hours.items（），None）：     打印键，值