how to achieve this result

I am working on small project using Python 2.6. Finally my list is like this.

data = ['1:Rammmm,mmmm', '2:surr.rrrrr', '3:Sam ttttt',
 '1:qqqq qqqqqqq', '2:wwwwwwwwwww', '3:eeeeeeeee','4:tttttttt',
 '1:zzzzzzzzzzzzz', '2:xxxxxxxxx']
 

Here, I want to display all 1's in one line, all 2's in one line, etc., with pipe"|" as separator. It should be like this with sorting order.

{Rammmm,mmmm|qqqq qqqqqqq|zzzzzzzzzzzzz}
 {surr.rrrrr|wwwwwwwwwww|xxxxxxxxx}
 {Sam ttttt|eeeeeeeee}
 {tttttttt}
 

How can this be achieved in Python?

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