Comparison of string search efficiency in Python

Source: Internet
Author: User

Comparison of string search efficiency in Python

There are multiple string search methods in Python, including re. match/search or str. find.

An example is provided to illustrate the efficiency of various methods:

 

From timeit import timeitimport redef find (string, text): if string. find (text)>-1: passdef re_find (string, text): if re. match (text, string): passdef best_find (string, text): if text in string: passprint timeit ("find (string, text )", "from _ main _ import find; string = 'lookforme '; text = 'look'") print timeit ("re_find (string, text )", "from _ main _ import re_find; string = 'lookforme '; text = 'look'") print timeit ("best_find (string, text )", "from _ main _ import best_find; string = 'lookforme '; text = 'look '")

The execution result is:

 

 

0.4413942522342.123024940490.251421928406

 

The most efficient method is: if text in string:

 

 

 

Related Article

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.