What does python's len function mean?

Python's len function is used to return the length of strings, lists, dictionaries, tuples, etc. The syntax is [len(str)], where str is the string, list, dictionary, tuple, etc. to be calculated. .

The operating environment of this tutorial: Windows 7 system, python version 3.9, DELL G3 computer.

The len() function in Python

1: Function: Return the length of string, list, dictionary, tuple, etc.

2: Syntax :

len(str)

3: Parameters:

str: ​​String, list, dictionary, tuple, etc. to be calculated

4: Return value: string, list, dictionary , the length of elements such as tuples

Example

1. Calculate the length of the string:

>>> s = "hello good boy doiido"
>>> len(s)
21

2. Calculate the number of elements in the list:

>>> l = ['h','e','l','l','o']
>>> len(l)
5

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