[Numpy-discussion] how do I list all combinations

Mathew Yeates myeates@jpl.nasa....
Wed Dec 26 15:05:22 CST 2007


Which reference manual?

René Bastian wrote:
> Le Mercredi 26 Décembre 2007 21:22, Mathew Yeates a écrit :
>   
>> Hi
>> I've been looking at "fromfunction" and itertools but I'm flummoxed.
>>
>> I have an arbitrary number of lists. I want to form all possible
>> combinations from all lists. So if
>> r1=["dog","cat"]
>> r2=[1,2]
>>
>> I want to return [["dog",1],["dog",2],["cat",1],["cat",2]]
>>
>> It's obvious when the number of lists is not arbitrary. But what if
>> thats not known until runtime?
>>
>> Mathew
>>     
>
> In the 'Reference Manual' of Python there is an example.
>
>   
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>>     
>
>   




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