About Strip,lstrip,rstrip in Python

First, causes

Today in the role control, there is a place to use Rstrip to determine whether the URL requested by the user corresponds to the URL in the database for the available permissions.

if or Request.path. Rstrip ('/'# exact match to determine if Request.path matches one of the permission tables

Take this opportunity to summarize Strip,lstrip and Rstrip in Python.

Second, Introduction

In Python, strip is used to remove the first character of a string, in the same vein,Lstrip is used to remove the left character, andRstrip to remove the right character.

Each of these three parameters can pass in a parameter that specifies the first and last characters to be removed.

It is important to note that a character array is passed in, and the compiler removes all matching characters from both ends until there are no matching characters, such as:

>>> teststring="saaaay Yes no yaaaass"print teststring.strip ('  say'

Visible, teststring is removed sequentially from the characters in the [' s ', ' a ', ' y '] array until the remaining characters are no longer in the array. So the output is yes No.

Note:

When no parameters are passed in, the leading and trailing spaces are removed by default.

Lstrip and Rstrip the same principle.

Example:

>>> teststring="saaaay Yes No yaaaass">>>PrintTeststring.strip ('say') Yes no #以空格开头和结尾的
>>>PrintTeststring.strip ('say') es no#开头结尾均无空格>>>PrintTeststring.lstrip ('say') Yes no yaaaass#以空格开头>>>PrintTeststring.rstrip ('say') saaaay Yes no #以空格结尾>>>

You can understand this diagram against the selected state in the editor

About Strip,lstrip,rstrip in Python