Joan Venge Joan Venge - 7 months ago 10
Python Question

Accessing the index in Python for loops

Does anyone know how to access the index itself for a list like this:

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 additional state variable, such as 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 builtin 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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