[colug-432] Code check

[Tom Hanlon]

That is sweet !!

Python is nice,

I think what I just did was

#!/usr/bin/python
from colug import experience

--
Tom


On Thu, Aug 1, 2013 at 1:55 PM, Fandi Peng <fandi.814 at gmail.com> wrote:

> from itertools import combinations
>
> print combinations( ['DVD', 'dishwasher', 'software', 'tv'],  2)
> On Aug 1, 2013 1:39 PM, "Tom Hanlon" <tom at functionalmedia.com> wrote:
>
>> Colug,
>>
>>
>> Writing some python to do the following
>>
>> Take this list, or any similar list of variable length
>>
>> ['DVD', 'dishwasher', 'software', 'tv']
>>
>> And return all two item combinations.
>>
>> DVD *** dishwasher
>> DVD *** software
>> DVD *** tv
>> dishwasher *** software
>> dishwasher *** tv
>> software *** tv
>>
>> My first draft looks like this.
>>
>> #!/usr/bin/python
>> list1 = ['software', 'DVD', 'dishwasher', 'tv'];
>> list1.sort();
>> print list1;
>> for i in range(len(list1)):
>>     for i2 in range(i+1,len(list1)):
>>         print list1[i], "***",list1[i2];
>>
>>
>> It works.
>>
>> Can this be done in a cleaner way ?
>> Am I invoking any bad habits ?
>> Is there a builtin tool for this ?
>>
>> Reasons I am doing this..
>> hive the hadoop SQL to Map Reduce translator has ngrams, that allow
>> splitting strings into configurable length substrings. That is sorta cool,
>> but I want all possible pairs, not just consecutive pairs.
>>
>> The list of items is an array to hive, I could pass an array of arrays if
>> there was a complete "shuffle" I could do on the array (word list) . Not
>> finding this I figure that shipping the itemlist to python would be the
>> most efficient.
>>
>> So that is the use case, but help with the python in terms of a quick
>> sanity check is what I need. Unless you happen to be doing word
>> co-occurrence in hive and have some insight there.
>>
>> Thanks, Colug,
>>
>> Tom
>>
>>
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>>
>>
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