[Tutor] compare and arrange file

[Steve Willoughby]

On 11-Jul-11 17:18, Edgar Almonte wrote:
> this is just one time thing and the value don't get repeat

Then you could make a single loop over the input lines, building two
dictionaries as you go:
   * one that maps column 2's value to the rest of that line's data
   * and one that does this for column 3's value.

Now run through the column 2 data you saved, print that data row,
then look up the value in the other dictionary and print that after it.

>
> On Mon, Jul 11, 2011 at 7:55 PM, Steve Willoughby<steve at alchemy.com>  wrote:
>> On 11-Jul-11 16:50, Edgar Almonte wrote:
>>>
>>> Thanks for the hints , what i want accomplish is sort the line by the
>>> same value in the column 2 and 3
>>>
>>> i mean the line with the same value in the 2 get together with the
>>> line in the same value in column 3
>>
>> What if the same value appears more than once?  Does it matter which ones
>> you match up?  If so, how do you decide?
>>
>> --
>> Steve Willoughby / steve at alchemy.com
>> "A ship in harbor is safe, but that is not what ships are built for."
>> PGP Fingerprint 4615 3CCE 0F29 AE6C 8FF4 CA01 73FE 997A 765D 696C
>> _______________________________________________
>> Tutor maillist  -  Tutor at python.org
>> To unsubscribe or change subscription options:
>> http://mail.python.org/mailman/listinfo/tutor
>>


-- 
Steve Willoughby / steve at alchemy.com
"A ship in harbor is safe, but that is not what ships are built for."
PGP Fingerprint 4615 3CCE 0F29 AE6C 8FF4 CA01 73FE 997A 765D 696C