How to convert list of key-value tuples into dictionary

Question

I have a list that looks like      A   1     B   2     C   3     I want to turn it into a dictionary that looks like     A   1   B   2   C   3    What s the best way to go about this   EDIT  My list of tuples is actually more like     A  12937012397    BERA  2034927830    CE  2349057340

User · Accepted Answer

This gives me the same error as trying to split the list up and zip it. ValueError: dictionary update sequence element #0 has length 1916; 2 is required

THAT is your actual question.

The answer is that the elements of your list are not what you think they are. If you type myList[0] you will find that the first element of your list is not a two-tuple, e.g. ('A', 1), but rather a 1916-length iterable.

Once you actually have a list in the form you stated in your original question (myList = [('A',1),('B',2),...]), all you need to do is dict(myList).

User · Answer

Here is a way to handle duplicate tuple  keys      An example l      A   1     B   2     C   3     A   5     D   0     D   9      A solution d   dict    d  t  0   append t  1   if t  0  in list d keys      else d update  t  0    t  1     for t in l  d  OUTPUT    A    1  5    B    2    C    3    D    0  9

User · Answer

l    A   1     B   2     C   3   d    for i j in l  d setdefault i j  print d

User · Answer

gt  gt  gt  dict    A   1     B   2     C   3      A   1   C   3   B   2

User · Answer

Another way using dictionary comprehensions    gt  gt  gt  t      A   1     B   2     C   3    gt  gt  gt  d     i j for i j in t    gt  gt  gt  d   A   1   B   2   C   3

User · Answer

If Tuple has no key repetitions  it s Simple   tup      A  0    B  3    C  5   dic   dict tup  print dic    If tuple has key repetitions   tup      A  0    B  3    C  5    A  9    B  4   dic      for i  j in tup      dic setdefault i     append j  print dic

User · Answer

Have you tried this    gt  gt  gt  l    A  1     B  2     C  3    gt  gt  gt  d dict l   gt  gt  gt  d   A   1   C   3   B   2

[python] How to convert list of key-value tuples into dictionary?

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