Python

Python detects the processes running under Linux# -*- coding:utf8 -*-import subprocessimport sysstatus_ok = 0status_ Critical = 2def c (d_name):    cmd =  ' ps -ef|grep %s| grep -v  "grep" '  % d_name    p = subprocess. Popen

Article directory: __call__ __iter__ Yeild Arrage __call__ Callable Object　　#!/usr/bin/env python#!-*-coding:utf-8-*-" "switch (c+) @author xyt callable Object" "classG_DPM (object):def __init__(self,g): SELF.G=gdef _

1. CommentsStart with #2. StringThe data type is str type;Enclosed in double quotation marks "" or single quotation marks, if the string contains characters, the ' This is a ' string ' format3. NumberThere are only two types of int and float

PythonVariable TypeThe value that the variable is stored in memory. This means that there is a space in memory when creating variables.Based on the data type of the variable, the interpreter allocates the specified memory and determines what data

Recent Python language seems to compare fire, today idle to nothing, simple look under, is an introduction bar. A language is worth so many people to learn, there must be its unique, below we use Python and other languages to do a comparison.Pythond

a dozens of G file wants to use Python multithreading reads improve processing efficiency, and results are never as expected. It was a reminder of the hair. A process-initiated thread will share a file handle, and a-thread-to-file operation (even

1: DownloadHttp://dlsw.baidu.com/sw-search-sp/soft/6e/17016/python-3.3.5.1395976247.msi2: Direct Next installation3: Verify the installation is successfulC:\users\gechong>pythonpython 3.3.5 (v3.3.5:62cf4e77f785, Mar 9, 10:37:12) [MSC v.1600 + bit

Variables and memory management:As with most programming languages, it is important to declare variables before using variables. The Declaration and assignment of variables in Python are performed at the same time, and are declared automatically at

Python, python3 Use list in Python to sequence elements Example: L = [] # An empty list L2 = [1, 2, 3] # A number list L3 = ['A', 'B', 'C'] # a string list L4 = [[3, 4], ['black', 'red', 'yellow'], [] # A list with a length of 3   The elements in

Implement chained call in python Anyone who has used jquery generally knows that it can be chained in jquery, and the code is concise and elegant. For example, certificate (+a%%%.addclass(%test%%%%%.show(%.html ("foo ");. Pipeline in redis-py can

Naive Bayes python implementation Probability Theory is the basis of many machine learning algorithms. Naive Bayes classifier is called naive because only original and simple assumptions are made throughout the formal process. (This assumption:

Python applets, file operations and other Below are several small programs written by myself for file operations, including file operations and the use of lists (collections and dictionaries. For example, read a row of data from a file, store it in

Python simple crawling page LearningRecently, I want to develop a small web application to record the scores of a book on Douban, Amazon, and other websites with book reviews. This serves as a reference when I buy my own books. This log uses

Python Time Processing In practice, if you encounter a time processing problem, you need to compare Sep 06,201 4 (UTC time) with the current time sooner or later to know the operation of the time in the format. Therefore, when processing, you just

Keep up with the writing rules of functions in the legend of Python, and write rules in python. There are always a few things about functions. Below are some notes for writing functions. In particular, I did not summarize these issues. I copied them

Solution for python to operate mysql to display garbled characters in Chinese, This example shows a script python used to convert the table configuration data xml and generate the corresponding parsing code.However, garbled characters appear in the

Python MYSQLdb garbled solution, pythonmysqldb This article describes how to solve MYSQLdb garbled characters in Python. The specific method is as follows: In general, the most troublesome problem with mysql is garbled code. View the mysql encoding:

I have learned the second method of compiling Python, and I have learned how to compile python. Data Transfer Process In addition to writing such a function in a class, you can also write other functions in the class to continue the example

Using Psyco to speed up python execution to the same level as the compilation language, psycopython This article describes how to use Psyco to speed up python execution to the same level as the compilation language. The specific implementation

Python PyUnit unit test instance, pythonpyunit This article describes Python PyUnit unit testing, which is similar to erlang eunit unit testing. The specific method is as follows: 1. The widget. py file is as follows: Copy codeThe Code is as follows