What is the Len method in the Python dictionary? How does the Len method work?

Source: Internet
Author: User
In this article, let's look at the built-in functions in the Python dictionary, where I'll illustrate the Len () method and the role of Len(). Well, don't say much, let's get into the article.

Describe

The Python dictionary (Dictionary) len () function calculates the number of dictionary elements, that is, the total number of keys.

Grammar

Len () method syntax:

Len (dict)

Parameters

Dict-A dictionary to count the number of elements.

return value

Returns the number of elements in the dictionary.

Instance

The following example shows how the Len () function is used:

#!/usr/bin/pythondict = {' Name ': ' Zara ', ' Age ': 7};p rint "Length:%d"% len (dict)

The result of the above example output is:

Length:2

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.