How to express True in Python and True in Python

Source: Internet
Author: User

How to express True in Python and True in Python
In Python, how does one express True to False?

  • 0 is False, and all other values are True.
  • The empty string ("") is False, and all other strings are True.
  • Empty list ([]) is False, and all other lists are True
  • Null tuple () is False, and all other tuple is True
  • Null dict ({}) is False, and all other dcit instances are True.
Several methods to prevent writing
If I = 0: if str = "": if list = None: if set is None: if dict = None:
Elegant writing

Corresponding to the above example

If not I: if not str: if not list: if not set: if not dicte:
From: jihite

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.