.count()

Searches a list for a particular item and returns the number of matching entries found.

list.count(value, start, end)

The .count() method has three parameters:

• value: The string to search for. (Required)
• start: The index to start the search. Default is index 0.
• end: The position to end the search. Default is end of the string.

To count the number of 'pen' within the backpack list:

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To count the number of 'pen' within the backpack list from index 0 to index 5:

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