Python

1. New Three sheets Host,host_user,host_to_host_userHost Nid Hostname 1 C1 2 C2 3 C3 4 C4 5 C5 Host_user:

First I have the basics of programming language, you have the best, so you will soon know Python.Of course, because of my knowledge and learning limitations, please the vast number of ape/yuan to forgive and correct, common progress.First of all,

1, in the Linux environment has installed the FreeSWITCH, (not installed FreeSWITCH, please install the documentation)2, enter the source code directory CD LIBS/ESL directory first install yum install Python-develL Install Python-devel First,

1. Multiple if statements, whether to execute the problem sequentially:What about the left?Condition 1 met, and after he had finished his blabla, he would continue to judge condition 2.On the right?If the condition 1 is met, he will not execute the

1 #Coding:utf-82 ImportUrllib2,cookielib3 4 if __name__=='__main__':5Root_url='https://www.baidu.com/'6 #First Kind7 Print "First Kind"8response1=Urllib2.urlopen (Root_url)9 PrintResponse1.getcode ()Ten PrintLen (Response1.read ())

PYTHON specifies special variables with underscores as variable prefixes and suffixes._xxx cannot be imported with ' from Moduleimport * '__xxx__ System Definition NamePrivate variable names in the __xxx classCore style: Avoid using underscores as

Project Name:PigarProject Address:Https://github.com/damnever/pigarInstructions for use:USAGE:PIGAR[-H][-V][-U][-SNAME[NAME&NBSP, ...]  [-c [PATH]] [-l LOG_LEVEL]           [-IDIR[DIR&NBSP, ...]

Input is a built-in function: >>> input>>> ?Specific usage: Receives the user input the content, the input string, receives is the string, the input is the number, receives is the number

Stupid way to learn the 39th verse of PythonThis section is mainly about dictionaries, the first two differences between a dictionary and a list are:1. The list can be found by numbers in the list of elements, the number as the index, the dictionary

Variable: The program will use a lot of temporary storage data when running, this time use the variable, the name of the temporary data.Variables in Python do not need to be declared and can be used directly, and the data type of the variable is

1. Pilot inbound: From datetime import datetime2. Get the current date and time: Now_time = DateTime.Now ()3. Format the date we want: Strftime ()For example: "2016-09-21": DateTime.Now (). Strftime ('%y-%m-%d ')4. Add 1 hours to the current time:

Python can be used to encrypt files via Hashlib. Hashlib can support a variety of encryption, the most common MD5 for example, we can use to encrypt the user's input password, and then saved in the database.Example 1 encrypted stringImport

One, match meta-charactersThe use of meta-characters can be easily manipulated to write regular expressions more convenientCommon Meta characters:. It matches any character except the newline character in alternate mode (re. Dotall) It can even

1.#class #A class is a template that can contain multiple functions and functions in a template . #define a class classBar:deffoo (SELF,AGR):Print(SELF,AGR) obj=Bar ()Print(obj)Print(Obj.foo ("methods to invoke a class"))2.#Method

Python MultithreadingMultithreading is similar to executing several different programs at the same time, multithreaded operation has the following advantages: Threads can be used to place tasks that occupy a long period of time in the

Model Create a table from Import Models class UserInfo (models. Model): = models. Charfield (max_length=30) = models. Emailfield () = models. TextField () Basic operations #Increase # #Models. Tb1.objects.create (c1= '

def foo (*args, **kwargs):print ' args = ', argsprint ' Kwargs = ', KwargsPrint '---------------------------------------'if __name__ = = ' __main__ ':Foo (1,2,3,4)Foo (a=1,b=2,c=3)Foo (1,2,3,4, a=1,b=2,c=3)Foo (' a ', 1, None, a=1, b= ' 2 ', c=3)The

Python crawler simulated login knowledge, python crawler Simulation I have previously written a blog about crawling movie heaven resources using python crawlers, focusing on how to parse pages and improve crawler efficiency. Because all users have

PythonCrawl self-learning log (3) and pythoncrawl self-learning log September 21, 2016 09:21:431. Crawling cycle:(1) first generate an initial request to crawl the first url, and specify a callback function called the response to the download

Python crawls The Three Kingdoms The crawler tutorial in this article is divided into four parts: 1. where to crawl where 2. what to crawl 3. how to crawl 4. How to save the information after crawling 1. Where to crawl Romance of Three Kingdoms Ii.