Python

I analyzed the shape of the 19920203, 199203, 1992.02.03, 1992.02, 1992-02-03, 1992-02, 920203 time format features, listing the regular expression as follows: The code is as follows: ^ ((?: 19|20)? \d{2}) [-.]? (?: [0-1]?| 1) [0-9]) [-.]? (?: [0-3]

1. Half Open socket Use the shutdown () function to make the socket bidirectional data transfer into one-way data. Shutdown () requires a separate parameter that indicates how to close the socket. The specific: 0 means prohibition of future reading;

This paper explains Python's multi-threading in detail, which is a very important knowledge point in Python program design. Share it for everyone's reference. Here's how: People who have used python will find Python's multithreading very similar to

1. What happens when I'm stuck? Follow these steps, if you need to know something about English: Try to figure it out yourself.Read the documentation carefully to make sure that you do not have any relevant content.On Google, Baidu, mailing lists

The code is as follows: Import PDBdef pdb_test (ARG):For I in range (ARG):Print (i)return argPdb.run ("Pdb_test (3)") b function name, line number: Break point, B can query all breakpoints. The code is as follows: (Pdb) B pdb_testBreakpoint 1 at C:

The code is as follows: #!/usr/bin/python#-*-Encoding:utf-8-*-Import typesClass Notintegererror (Exception):PassClass Outofrangeerror (Exception):Pass_mapping = (U ' 0 ', U ' one ', U ' II ', U ' three ', U ' four ', U ' v ', U ' vi ', U ' seven ',

List One of the data types built into Python is the list: lists. A list is an ordered set of elements that can be added and removed at any time. For example, by listing the names of all the classmates in the class, you can use a list to indicate: >

Program execution requires reading two files Command.txt and ipandpass.txt. The format is as follows: The code is as follows: Command.txt:Threadnum:1Port:22Local_dir:hello_mkdirRemote_dir:hello_mkdirAlter_auth:chmod 755

The interface of the DateTime module is more intuitive and easier to invoke than the time module. Today we'll talk about the datetime module. A datetime module defines two constants: DateTime. Minyear and Datetime.maxyear, respectively,

The code is as follows: #-*-Coding:utf-8-*- From __future__ import unicode_literalsImport ImageImport datetimeImport Win32gui,win32con,win32apiImport reFrom Httpwrapper import SendRequest Storefolder = "C:\\dayimage" def setwallpaperfrombmp

The code is as follows: #!/usr/bin/python#coding: Utf-8#write: JACK#info: FTP ExampleImport ftplib, socket, OSFrom time import sleep, CTime def loginftp (self):FTPs = Ftplib. FTP ()Ftps.connect (Self.host,self.port)Ftps.login (SELF.NAME,SELF.PASSWD)

#! -*-coding:utf-8-*- Import string s = ' yes! This is a string ' print ' original string: ' + s print ' lowercase: ' + s.lower () print ' uppercase: ' + s.upper () print ' Case conversion: ' + S.swa Pcase () print ' first

The code is as follows: Import time Print Time.time () Print Time.localtime (Time.time ()) Print time.strftime ('%y-%m-%d ', Time.localtime ()) Print time.strftime ('%y-%m-%d ', Time.localtime ()) Print Time.strftime ('%y-%m-%d%h:%m:%s ',

Django, Bottle, Flask, and so on all Python web frameworks need to be configured with a secret_key. The document usually recommends that we use random values, but it's hard to see that he has any textual explanations, because it's easy to hack

Python is a weakly typed language, and many of the friends who turn from C + + are not very comfortable at first. For example, you cannot specify the type of a parameter when declaring a function. The analogy with C is that all parameters are void*

(1) variable = A If exper else b (2) variable = (Exper and [b] or [C]) [0] (2) variable = exper and B or C The above three usages can achieve the purpose, similar to the c language variable = exper? B:C: If the value of the Exper expression is true

The code is as follows: # Coding:utf-8Import OSImport Sysdef cut_and_paste_file (source, destination):'''Source:file Path ChineseDestination:directory Path'''def format_path (path):If not Os.path.isabs (path):Path = Os.path.join (OS.GETCWD (), Path)

Python has three very useful data structures, lists, tuples and dictionaries, tuples are immutable, the list can hold any type of Python object, and can arbitrarily extend no size limit, the dictionary is a key-value type of key-value mapping, can

There are two ways to manipulate the registry through Python, the first of which is through Python's built-in module _winreg, and the other is Win32 Extension for Python's Win32API module, but requires additional installation. Here are some of the

When writing a file using Python, or when writing a network stream to a local file, in most cases you will encounter: Unicodeencodeerror: ' GBK ' codec can ' t encode character ' \xa0 ' in position ... The problem. There are a lot of similar files