What is enumerate definition?

Enumerate is a Python function that facilitates looping over a sequence. It takes a sequence (like a list or a tuple) as its argument and returns an iterator that generates tuples containing the index and the respective value of each element in the sequence. The first value in the tuple is the index (starting from 0) and the second value is the element value. This makes it easier to access both the index and element value of a sequence in a single for loop iteration. The enumerate() function is helpful for tasks where the index of an element is also needed along with the element, such as in mapping dictionaries or creating indexed data.