Python

A. Python log moduleTwo. Python database connectionThree. Time Processing moduleFour. Python passes parameters to the shellFive. Send mail (py2.7)Six. Python Scheduled TasksSeven. Supervisor/etc/supervisor.conf[program:check]command =

Recently saw several small partners sent pictures of the download script, yesterday copied a python fragment, preface executed a bit, in the home directory immediately appeared a large number of new folders, similar to this effect: Ls-t OlXX Home

Print related Print prints multiple expressions, as long as they are separated by commas, and a space is inserted between each parameter in the result, using + to avoid spaces, such as>>> print ' Age: ', 42Age:42>>> print ' hello ' + ', ' + '

In Python there are a lot of good tools to generate string documents (docstring), such as: Epydoc, Doxygen, Sphinx, but always think Pydoc is a good tool, the usage is very simple, the function is good, this article mainly introduces Pydoc.Pydoc is

Concept python for multi-thread lockSeveral people asked me how to lock the resources, in fact, not to lock resources, but to lock the resources, you can define multiple locks, like the following code, when you need to monopolize a resource, any

Given an array of non-negative integers, you is initially positioned at the first index of the array.Each element of the array represents your maximum jump length is at that position.Your goal is to reach the last index in the minimum number of

Python learns ABC languageChristmas 1989Guido now works for GoogleCnri 1.5 agoBeopen 2.0 and 1.6 have a big difference.Zope PluginPython3.02.0 2.6 2.7 versions currently in useTiobe Programming awards the fastest growing sharePython

Using the map () function, the nonstandard English name entered by the user becomes the first letter capitalized, and the other lowercase canonical names. Input: [' Adam ', ' Lisa ', ' Bart '], output: [' Adam ', ' Lisa ', ' Bart '].The sum ()

Python iterators and generator iteratorsAn iterator is an object that implements an iterator protocol, and the iterator protocol in Python is that an object with the next method advances to the next result, and Stopiteration is thrown at the end of

First, download and install http://www.python.org/download/installation II. Configure the environment variable to configure the Python environment variable to install the plug-in later. D:\Program Files\python27;d:\program files\python27\scripts

The first step is to understand the two concepts of process vs threading:Process: A program on a computer that runs an activity on a data collection. For example, open 2 Notepad, that is, 2 processes are opened.Thread: A thread, sometimes called a

#-*-coding:gb2312-*-ImportSmtplib fromEmail.mime.textImportMimetext fromEmail.mime.multipartImportMimemultipartdefSendMail (to, Sub, content): Text= Mimetext (Content, _subtype='Plain', _charset='gb2312') Attachment= Mimetext (Open

Python executes the shell-subprocess module and pythonprocessPython executes shell-subprocess module call Retcode = subprocess. call (["ls", "-l"])Call I feel like OS. popen. I can only execute the command to check the returned value. Command

The inheritance relationship of the exception class in Python (2.7.6), python2.7.6 BaseException +-- SystemExit +-- KeyboardInterrupt +-- GeneratorExit +-- Exception +-- StopIteration +-- StandardError | +-- BufferError | +-

Nested functions of Python pitfall Note that Python is an interpreted language. function A can call function B if function B is not defined before function A is defined. Def func1 (): print "Hello fun1" fun2 () def func2 (): print "Hello func2"

The basic IronPython type, IronPython type By presenting the basic types of IronPython, it is easy to understand and remember.       Basic Data Type   Data Type Type Example Remarks Byte string Str

Parse XML using ElementTree in Python 【Introduction to basic XML concepts]XML refers to the eXtensible Markup Language ).XML is designed to transmit and store data. Concept 1: # Start label of the foo Element # End tag of the foo element #

Python standard library: built-in function pow (x, y [, z]) This function is used to calculate the yth power of x. If z exists, modulo the result. The result is equivalent to pow (x, y) % z. Pow (x, y) is equivalent to x ** y. The calculation

Example of using _ slots _ in python, and python _ slots _ Under normal circumstances, when we define a class and create a class instance, we can bind any attributes and methods to the instance, which is the flexibility of Dynamic Language. First

Introduction to Python constructor and deconstruct of python Constructor Python has a special destructor method named _ del __(). However, because python has a garbage collection mechanism (dependent on reference count), this function will not be