Get number of iteration

Paul Prescod paul at prescod.net
Thu Jan 29 17:31:12 CET 2004


Diez B. Roggisch wrote:

>>If I iterate through a list, is there a way I can get the number of the
>>iteration: first, second, third, ...
>>
>>l = ["three", "four", "five", "six"]
>>for x in l
>>  print x
>>  print x.iteration()  # <- That's what I'm looking for!
>>  print "next"
 > ...
> 
> So usually x won't have an iteration-method. But of course you can alwas do
> this:
> 
> for i in xrange(len(l)):
>   x = l[i]
>   print x
>   print i
>   print "next"

In recent versions of Python there is an easier way:

 >>> for index, value in enumerate(["three", "four", "five", "six"]):
...    print index, value
...
0 three
1 four
2 five
3 six

  Paul Prescod






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