How to output an index while iterating over an array in python [duplicate]

Question

I am iterating over an array in python:

for g in [ games[0:4] ]:
    g.output()

Can I also initialise and increment an index in that for loop and pass it to g.output()?

such that g.output(2) results in:

Game 2 - ... stuff relating to the object `g` here.

tzaman · Accepted Answer · 2010-06-06 14:41:24Z

37

Like this:

for index, g in enumerate(games[0:4]):
    g.output(index)

answered Jun 6, 2010 at 14:41

tzaman

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Comments

Mark Rushakoff · Accepted Answer · 2010-06-06 14:41:53Z

15

Use the built-in enumerate method:

for i,a in enumerate(['cat', 'dog']):
   print '%s is %d' % (a, i)

# output:
# cat is 0
# dog is 1

answered Jun 6, 2010 at 14:41

Mark Rushakoff

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