How to get value from the dict..?

Question

I am doing my homework but when I tried to use dict to count the numbers, I found that I cannot get exact value from the list...

def get_data(openfile):
    totalcount = 0
    digit_count = {d:0 for d in '123456789'}
    for line in openfile:
        line = line.strip()
        if int(line[0]) != 0 and line[0].isdigit():
            first_digit = line[0]
            totalcount += 1
            digit_count[first_digit] += 1
    print(digit_count)
    contents = []
    for data in digit_count:
        contents.append(data)
    print(contents)

Then I used print to see what is in the 'digit_count' and 'contents'.

in the digit_count:

{'5': 89, '3': 203, '7': 79, '8': 77, '1': 500, '9': 69, '2': 304, '6': 70, '4': 140}

in the content:

['5', '3', '7', '8', '1', '9', '2', '6', '4']

Is that aviliable to get the count numbers from the digit_count..? any ideas? The numbers I want to get such as 89,203,79...

You're asking how to get `['5', '3', '7', ...]` from the dict `{'5': 89, '3': 203, '7': 79...}` ? — Anonymous, Jun 14 '16 at 02:12
I'm not 100% sure what you're asking either, but you may want to look into how to properly iterate over a dictionary. — user2027202827, Jun 14 '16 at 02:13
You should definitely look into using the `Counter` object in Python — OneCricketeer, Jun 14 '16 at 02:18

score 1 · Answer 1 · answered Jun 14 '16 at 02:23

1

You want to get the values from your dictionary; just use the .values() method.

vals = digit_count.values()

answered Jun 14 '16 at 02:23

Moe Chughtai

384
2
13

score 0 · Accepted Answer · answered Jun 14 '16 at 02:13

0

change your code to:

 for data in digit_count:
            contents.append(digit_count[data])

answered Jun 14 '16 at 02:13

Adam Lyu

431
1
5
17

You could just print out the values of digit_count. No reason to create the unnecessary list – OneCricketeer Jun 14 '16 at 02:20
@cricket_007 you are right. I just modify his code slightly. – Adam Lyu Jun 14 '16 at 02:21

score 0 · Answer 3 · answered Jun 14 '16 at 02:23

0

Instead of this:

for data in digit_count:
    contents.append(data)

You can use:

contents = digit_count.values()

answered Jun 14 '16 at 02:23

Armen Halajyan

87
1
2
9

score 0 · Answer 4 · answered Jun 14 '16 at 02:24

0

print key

digit_count.keys()

print value

digit_count.values()

answered Jun 14 '16 at 02:24

galaxyan

5,944
2
19
43

score 0 · Answer 5 · answered Jun 14 '16 at 02:27

0

Replace

  contents = []
  for data in digit_count:
      contents.append(data)
  print(contents)

with

  contents = dict(digit_count.items())
  print(contents)

answered Jun 14 '16 at 02:27

dmitryro

3,463
2
20
28

How to get value from the dict..?

5 Answers5