Joan Venge Joan Venge - 2 months ago 5
Python Question

Accessing the index in Python 'for' loops

How do I access the index itself for a list like the following?

ints = [8, 23, 45, 12, 78]


When I loop through it using a
for
loop, how do I access the loop index, from 1 to 5 in this case?

Answer

Using an additional state variable, such as an index variable (which you would normally use in languages such as C or PHP), is considered non-pythonic.

The better option is to use the built-in function enumerate(), available in both Python 2 and 3:

for idx, val in enumerate(ints):
    print(idx, val)

Check out PEP 279 for more.

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