Why I get list object has no attribute items

Question

Using Python 2 7  I have this list   qs     u a   15L  u b   9L  u a   16L     I d like to extract values out of it   i e   15  9  16    So I tried   result list    int v  for k v in qs items      But instead  I get this error   Traceback  most recent call last     File   lt stdin gt    line 1  in  lt module gt  AttributeError   list  object has no attribute  items    I m wondering why this happens and how to fix it

User · Accepted Answer

result list    int v  for k v in qs 0  items      qs is a list  qs 0  is the dict which you want

User · Answer

If you don t care about the type of the numbers you can simply use   qs 0  values

User · Answer

More generic way in case qs has more than one dictionaries       int v  for lst in qs for k  v in lst items      --   gt  gt  gt  qs     u a   15L  u b   9L  u a   16L    u a   20  u b   35    gt  gt  gt  result list    int v  for lst in qs for k  v in lst items     gt  gt  gt  result list  16  9  20  35

User · Answer

Dictionary does not support duplicate keys- So you will get the last key i e a 16 but not the first key a 15   gt  gt  gt qs     u a   15L  u b   9L  u a   16L    gt  gt  gt qs  gt  gt  gt   u a   16L  u b   9L    gt  gt  gt result list    int v  for k v in qs 0  items     gt  gt  gt result list  gt  gt  gt  16  9

User · Answer

items is one attribute of dict object maybe you can try   qs 0  items

User · Answer

You have a dictionary within a list  You must first extract the dictionary from the list and then process the items in the dictionary   If your list contained multiple dictionaries and you wanted the value from each dictionary stored in a list as you have shown do this   result list     int v  for k v in d items    for d in qs    Which is the same as   result list      for d in qs      result list append  int v  for k v in d items       The above will keep the values from each dictionary in their own separate list  If you just want all the values in one big list you can do this   result list    int v  for d in qs for k v in d items

[python] Why I get 'list' object has no attribute 'items'?

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