“Enumerate” is a builtin function for adding indices from "summary" of Fluent Python by Luciano Ramalho
The `enumerate` function in Python is a built-in function that allows you to iterate over a sequence while keeping track of the index of each item. This can be especially useful when you need both the index and the value of each item in a sequence. When you call `enumerate` on a sequence, it returns an iterator that will yield pairs of index and value for each item in the sequence. This makes it easier to loop over the items in a sequence and have access to their indices at the same time. To use `enumerate`, you can simply call it with the sequence you want to iterate over as an argument. For example, if you have a list of names and you want to print each name along with its index, you can use `enumerate` like this: ``` names = ['Alice', 'Bob', 'Charlie'] for index, name in enumerate(names): print(index, name) ``` In this example, `enumerate` returns an iterator that yields pairs of index and name for each item in the `names` list. The `for` loop then unpacks these pairs into the `index` and `name` variables, allowing you to access both the index and the value of each name in the list. This can be a more concise and readable way to iterate over a sequence while keeping track of the indices. The `enumerate` function is a convenient way to add indices to items in a sequence without having to manually keep track of them using a separate variable. This can make your code cleaner and more readable, especially when you need to work with both the indices and values of items in a sequence. By using `enumerate`, you can simplify your code and make it easier to understand, leading to more maintainable and efficient programs.
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