Enumerate in Python

The enumerate() function in Python is a built-in utility that allows you to loop over an iterable (like a list, tuple, or string) and get the index and value of each item simultaneously. It is commonly used in for-loops.

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Syntax:

enumerate(iterable, start=0)

• iterable: The sequence you want to enumerate.
• start: The starting value of the index (default is 0).

Returns:

An enumerate object, which produces pairs containing an index and the corresponding item from the iterable.

Example Usage:

1. Basic Example with List:

fruits = ['apple', 'banana', 'cherry']
for index, fruit in enumerate(fruits):
    print(index, fruit)

Output:

0 apple
1 banana
2 cherry

2. Custom Start Index:

for index, fruit in enumerate(fruits, start=1):
    print(index, fruit)

Output:

1 apple
2 banana
3 cherry

3. Using enumerate() with a Tuple: