6 days ago · enumerate () function adds a counter to each item in a list or other iterable. It turns the iterable into something we can loop through, where each item comes with its number (starting from 0 by default).

Here are twelve examples of how you can access the indices with their corresponding array's elements using for loops, while loops and some looping functions. Note that array indices always start from zero by default (see example 4 to change this).

In other programming languages (C), you often use a for loop to get the index, where you use the length of the array and then get the index using that. That is not Pythonic, instead you should use enumerate ().

A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). This is less like the for keyword in other programming languages, and works more like an iterator method as found in other object-orientated programming languages.

Apr 5, 2025 · Understanding the fundamental concepts, usage methods, common practices, and best practices of using for loop with enumerate will help you write more efficient and readable Python code.

Jul 29, 2022 · Learn several ways to loop through a list in Python, including for loops, while loops, and much more!

Oct 14, 2024 · The code above shows how enumerate simplifies the logic of breaking a loop based on multiple conditions—both index and value. It can be applicable in data analysis where we want to stop the process when we encounter certain values.

Dec 8, 2016 · If you want the nested for loop behavior described, you should use the product iterator from the itertools module. In other words, replace enumerate(range(start, end+1)) with product(range(start, end+1), range(start, end+1)).

Jul 11, 2025 · We can also use the enumerate () function to iterate through the list. This method provides both the index (i) and the value (val) of each element during the loop.

Mar 25, 2025 · The enumerate function in Python provides a convenient way to iterate over an iterable while keeping track of the index. It simplifies many common programming tasks such as modifying elements based on index and finding elements with …