python remove part of string

1 Python Introduction 1.1 What is PythonPython is an object-oriented, interpreted computer programming language, invented by Dutchman Guido van Rossum (Guido van Rossum) in 1989, and the first public offering was released in 1991. The latest version

Original author: a.m. kuchling (amk@amk.ca) Licensing: Authoring Sharing protocol Translation staff: Firehare Proofreading Staff: Leal Applicable version: Python 1.5 and subsequent versions http://wiki.ubuntu.org.cn/Python%E6%AD%A3%E5%88%99%E8%A1%A8%

By its very nature, a regular expression (or RE) is a small, highly specialized programming language that is embedded in Python and implemented through the RE module. With this small language, you can specify rules for the set of strings that you

Strings are important data objects in PythonPython strings are any Python data object enclosed in single quotes, double quotes, or three three single quotes, three double quotes, which can be called a python stringNote A data object that contains a

The command line has a fairly high reputation for Linux users. Unlike other operating systems, the command line is a scary proposition, but for the experienced Daniel in the Linux community, the command line is the most recommended and encouraged to

The string type is a very important type in Python and is usually expressed in the form of a character in the middle of a quotation mark, unlike in other languages, where the double quotation marks ("") in Python are not distinguished from single

A string is one of the most commonly used data types in Python, and the essence of a string is a value, just like a numberIt is also easy to create a string by assigning a value to the variableThe value of the note is that the string is not variable

The function of the counter can be automatically exited in the dead loop, if the condition is met. #!/usr/bin/env python# _*_ coding:utf-8 _*_# @Time : 2017/3/14 11:23# @Author : eason# @File : Guest_lucknum. Py.pylucky_num = 19input_num = -1

How to optimize the performance of Python is the main problem discussed in this paper. This article will cover common code optimization methods, the use of performance optimization tools and how to diagnose the performance bottlenecks of the code,

If you select a scripting language, you have to endure its speed. this statement illustrates to some extent the shortcomings of python as a script, that is, the execution efficiency and performance are not ideal, especially on machines with poor