Python equivalent of Ruby's each_with_index? [duplicate]

Something like:

for i, v in enumerate(a):   print "{} : {}".format(i, v)

python ruby equivalent

That'd be enumerate.

a=['a','b','c']for i,v in enumerate(a):    print "%i : %s" % (i, v)

Prints

0 : a1 : b2 : c

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