Python magic parameters ** kw, python experience

Source: Internet
Author: User

Python magic parameters ** kw, python experience

You can set the dictionary type parameters and pass them directly to the method that receives the magic parameters (** kw). The corresponding values are assigned. Example:

JdbcConnectionDict = {'host': 'localhost', 'user': 'root', 'Password': 123, 'Port': 3306, 'database': 'test ', 'charset': 'utf8'} conn = pymysql. connect (** jdbcConnectionDict)

In the preceding method, the dictionary type parameter jdbcConnectionDict is directly transferred to the pymysql. connect () method.

Note: ** must be added before the parameter **.

Tip: You must use another magic parameter (* args) as a variable array parameter before using the MAGIC parameter (** kw. Example:

Def Connect (* args, ** kwargs): pass

If you have any good experiences or suggestions, you can share them with us.

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.