CODEWITHSUNDEEP
python
AnneS
AnneS

Reputation: 1583

ValueError: need more than 1 value to unpack

I want to change the contents in a list of tuples, returned by a findall() function. And I am not sure whether I could change the elements from string to integer like this. And the error always shows that I need more than 1 value. 

Ntuple=[]

match = re.findall(r'AnswerCount="(\d+)"\s*CommentCount="(\d+)"', x)

print match

for tuples in match:
    for posts, comments in tuples:
        posts, comments = int(posts), (int(posts)+int(comments))  ## <- error

print match

Upvotes: 1

Views: 4413

Answers (2)

interjay
interjay

Reputation: 110202

The problem is in the line for posts, comments in tuples:. Here tuples is actually a single tuple containing two strings, so there is no need to iterate over it. You probably want something like:

matches = re.findall(...)
for posts, comments in matches:
    ....

Upvotes: 2

NPE
NPE

Reputation: 500943

match is a list of tuples. The correct way of iterating over it is:

  matches = re.findall(r'AnswerCount="(\d+)"\s*CommentCount="(\d+)"', x)
  for posts, comments in matches:
    posts, comments = int(posts), (int(posts)+int(comments))

The conversion from string to integer is fine.

Upvotes: 1

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