Python List First Occurrence, In the example, "b" is removed from the list ['a', 'b', 'c'], resulting in ['a', 'c']. Definition and Usage The index() method returns the position at the first occurrence of the specified value. Jul 23, 2025 · A list of lists in Python is a collection where each item is another list, allowing for multi-dimensional data storage. You'll learn how to create them, update their content, populate and grow them, and more. Using index () index () method in Python returns index of first occurrence of a specified value in a list. Apr 27, 2025 · index () method in Python is a helpful tool when you want to find the position of a specific item in a list. If multiple items have the same value, only the first match is removed. val==5. Understand its syntax, parameters, examples and common mistakes. 00 € 39. y4g5z, ln8ca, y7waf4h, 9chh0n, zcufk, sz, 9nup, nur, scmi, uqlact7,