dictionary with tuples

[YBM]

Le 14/01/2014 23:00, Tobiah a écrit :
> On 01/14/2014 01:21 PM, YBM wrote:
>> Le 14/01/2014 22:10, Igor Korot a écrit :
>>> Hi, ALL,
>>> C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdb>python
>>> Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
>>> (Intel)] on win32
>>> Type "help", "copyright", "credits" or "license" for more information.
>>>>>> dict = {}
>>>>>> dict[(1,2)] = ('a','b')
>>>>>> dict[(3,4)] = ('c','d')
>>>>>> for (key1,key2),(value1,value2) in dict:
>>> ...     print key1, " ", key2
>>> ...     print value1, " ", value2
>>> ...
>>> Traceback (most recent call last):
>>>    File "<stdin>", line 1, in <module>
>>> TypeError: 'int' object is not iterable
>>>>>>
>>>
>>> What am I doing wrong?
>>
>> for ... in dict:
>>
>> is a way to iterate through dictionnary items,
>>
>> what you want to do can be done so:
>>
>> for (key1,key2),(value1,value2) in dict.items():
>>
>>
>>
>
> But it's (key1, value1), (key2, value2)

No. Try it.

key1 key2 are the members of every tuple key.
value1, value2 are the members of every tuple value.

  >>> d={ (1,2):('a','b'), (3,4):('c','d') }
  >>> for (key1,key2),(value1,value2) in d.items():
  ...     print key1,key2,value1,value2
  ...
  1 2 a b
  3 4 c d