[Tutor] How can I replicate a list in a for loop

[Raúl Cumplido]

There is a repeat argument on the product function that is used exactly for
what you want to do:
>>> for s in product(var, repeat=2)
            print ''.join(s)


On Wed, Feb 4, 2015 at 1:01 PM, Raúl Cumplido <raulcumplido at gmail.com>
wrote:

> sorry, just me being stupid :P should have read closely what the problem
> was
>
> On Wed, Feb 4, 2015 at 12:54 PM, Raúl Cumplido <raulcumplido at gmail.com>
> wrote:
>
>> I think you want to use combinations_with_replacement:
>>
>> >>> var = ['a', 'b', 'c', 'd', 'e']
>>
>> >>> length=int(raw_input("enter the length of random letters you need "))
>> enter the length of random letters you need 2
>>
>> >>> length
>> 2
>>
>> >>> from itertools import combinations_with_replacement
>>
>> >>> [''.join(s) for s in combinations_with_replacement(var, 2)]
>> ['aa',
>>  'ab',
>>  'ac',
>>  'ad',
>>  'ae',
>>  'bb',
>>  'bc',
>>  'bd',
>>  'be',
>>  'cc',
>>  'cd',
>>  'ce',
>>  'dd',
>>  'de',
>>  'ee']
>>
>> On Wed, Feb 4, 2015 at 12:38 PM, Alan Gauld <alan.gauld at btinternet.com>
>> wrote:
>>
>>> On 04/02/15 09:46, Suresh Kumar wrote:
>>>
>>>  print var
>>>>>>>
>>>>>> ['a', 'b', 'c', 'd', 'e']
>>>>
>>>
>>>  the user gave two so code should be like this
>>>>
>>>>> for i in itertools.product(var,var):
>>>>>>>
>>>>>>             print i[0]+i[1]
>>>>
>>>
>>>  output of code should be like this
>>>> aa
>>>> ab
>>>>
>>> ...
>>>
>>>> ee
>>>>
>>>
>>>  based on the user given input of length i need to add var in for loop
>>>> if 3 given
>>>>
>>>>> for i in itertools.product(var,var,var):
>>>>>>>
>>>>>>             print i[0]+i[1]+i[2]
>>>>
>>>
>>> OK, So the question is how to pass n copies of var to product()?
>>>
>>> You could do it by enclosing var in an outer list or tuple, then
>>> unpacking the result in the call to product():
>>>
>>> Untested...
>>>
>>> for i in itertools.product(*((var,) * n)):
>>>         print ''.join(i)
>>>
>>> Does that work?
>>>
>>>
>>>
>>> --
>>> Alan G
>>> Author of the Learn to Program web site
>>> http://www.alan-g.me.uk/
>>> http://www.amazon.com/author/alan_gauld
>>> Follow my photo-blog on Flickr at:
>>> http://www.flickr.com/photos/alangauldphotos
>>>
>>>
>>> _______________________________________________
>>> Tutor maillist  -  Tutor at python.org
>>> To unsubscribe or change subscription options:
>>> https://mail.python.org/mailman/listinfo/tutor
>>>
>>
>>
>