dictionary with tuples

[YBM]

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():