Python

the Difflib module contains tools for calculating and processing differences between sequences. It is especially useful for comparing text, which contains functions that can generate reports using a variety of common difference formats.  Three

http://blog.csdn.net/mottolinux/article/details/525600621 basic knowledge of Python coding in Python "plaintext" is Unicode type and str, "ciphertext" is another encoding format such as GBK UTF-8latin-1 Wait code: "Clear Text"-"ciphertext". Encode ([

Simple implementation of interface Automation testing (based on Python+unittest) introductionIn this paper, the basic interface test from the postman to get the simple interface test start, step-by-step optimization interface calls, and add basic

Summary: Socketserver simplifies the writing of Web servers. It has 4 classes: Tcpserver,udpserver,unixstreamserver,unixdatagramserver. These 4 classes are processed synchronously and are supported asynchronously through the Forkingmixin and

First, review:1, the process: The core is the process, the process is the steps to solve the problem, that is, what to do first, what to do, based on process-oriented design procedures, like in the design of a pipeline, is a mechanical thinking

Small try sledgehammer simple idiom solitaire.Ideas--1. Download the TXT version of the idiom dictionary online2, through the processing of Python to get the format of the idiom, and organized into a dictionary (Python Dictionary lookup speed)3, the

A knowledge reserve for understanding character encoding　　1. How the text editor accesses the file (Nodepad++,pycharm,word)Opening the editor opens a process that is in memory, so content written in the editor is also stored in memory, and data is

DateTime encapsulates a number of methods on a time basis. But time is often used, the function in datetime, time can achieve one, datetime of three modules Datetime.datedatetime.timedatetime.datetime mainly use this module import Datetime1,

[TOC] Part-of-speech labeling device A lot of the work after that will require the words to be marked out. NLTK comes with English labelpos_tag Import Nltktext = Nltk.word_tokenize ("And now for something compleyely difference") print

Python supports four different numeric types, including int (integer) long (Long integer) float (floating point actuals) complex (complex number), numeric data type stores numeric values. They are immutable data types, which means changing the value

The ROC (Receiver Operating characteristic) curve and AUC are often used to evaluate the merits and demerits of a binary classifier (binary classifier). This article will start with a brief introduction of ROC and AUC, and then use an example to

Background Python is Google's primary scripting language.　　This style guide mainly contains programming guidelines for Python. To help readers to accurately format the code, we provide a configuration file for vim.　For Emacs users, leave the default

Listfirst, the basis of the listObjective:Arrays: putting together a bunch of data of the same typeList: put a bunch of arbitrary types of data together (based on the variable no type, the data in the list has no Type)Grammar:List name

Python 51st days ---- thread, Event, queue, python 51st days Differences between processes and threads: Thread = instruction set, process = resource set (thread set) 1. threads in the same process share the memory space. The process and process are

Python http persistent connection client and python Background: For online machines, you need to filter access logs and send them to another api. It is a single process at the beginning, and the efficiency is too low. After sending a message to a

Python socket network programming, pythonsocket Socket: to allow two different applications to communicate. Two socket types: file-based and network-based 1. file-based (AF_LOCAL or AF_UNIX): Unix 2. network-oriented (AF_INET): representing the

Decision tree algorithm and Decision Algorithm English name: demo-tree Decision tree is a typical classification method. It processes data first, generates readable rules and decision trees using an induction algorithm, and then analyzes new data

Python crawler tutorial-elegant HTTP library requests (2) and pythonrequests Preface Urllib, urllib2, urllib3, httplib, and httplib2 are HTTP-related Python modules. If you look at the Python Module name, you will find it anti-human. What's worse,

Python win32com simple l Method for Exce operations (mandatory), win32comexce Example: From win32com. client import Dispatch import win32com. client class easyExcel: "A utility to make it easier to get at Excel. remembering to save the data is your

Details about python processes and process pools (Processing Library) and pythonprocessing Environment: win7 + python2.7 I always wanted to learn multi-process or multi-thread, but I just read some basic knowledge and briefly introduced it before,