Documentation

Function defined in library builtins

len(sequence)

lensequence

Returns the length of a sequence (such as a string, tuple, list, or range) or a collection (such as a dictionary).

sequencesequence or collection

Length of the sequence or collection
Code
len('hello')
Result
5
Code
len([42])
Result
1

See also len in the official documentation

PyTamaro logo

PyTamaro is a project created by the Lugano Computing Education Research Lab at the Software Institute of USI

Privacy Policy • Platform Version c67fb165 (October 16, 2026 at 2:45:13 PM UTC)