Python

The code is as follows:#coding: Utf-8from PIL import imageimport pytesseractdef Test (): im = Image.open (r "Pic.gif") Vcode = Pytesseract.image_to_string (IM) print VcodeAn exception is thrown when the code above is executed to identify a

First, the urllib2 module in the Python Standard library provides most of the HTTP functionality you need, but its API is unfriendly. It was created for another era, another internet. It needs a huge amount of work, even covering a variety of

12th. Input/Output In most cases, we need the program to interact with the user. Get input from the user, and then print some results. You can use Raw_input and print statements to accomplish these functions, respectively. For output, you can use a

everis very curious,pythonthe variableHow to be so flexible that you don't have to declare their typeand can be a variety of casually assigned value, later in-depth study feel really interesting. Pythonin Digitalstrings, etc.Are objects,1is an

Create a list name_list = [' 123 ', ' 456 ', ' 789 '] essentially through name_list =list ([' 123 ', ' 456 ', ' 789 ']) and the string index is the same usage. Name= "Alex,eric" Name.split (', ') divides strings into lists by character, and

Introduction of the UnitTest frameworkGET request#coding:  utf-8import unittestimport requestsimport jsonclass testget (unittest. TestCase):     def setup (self):         self.test_url =  ' http://localhost:8080/jenkins/api/json?tree=jobs[name] '    

K Nearest neighbor (KNN): Classification algorithm* KNN is a non-parametric classifier (not to make the assumption of distribution form, to estimate the probability density directly from the data), is memory-based learning.* KNN does not apply to

twsited Asynchronous Network FrameworkTwisted is an event-driven network framework that includes features such as network Protocols, threading, database management, network operations, e-mail, and more.　Event-drivenIn short, the event driver is

First sort, then loop through, with double pointers.Class solution (Object): def threesum (self, Nums): "" " : Type Nums:list[int] : Rtype:list[list[int]] "" " solution=[] nums.sort () for I in range (len (nums)-

List is also the meaning of the lists, you can store a set of data, such as classmates=[' Zhangsan ', ' Lisi ', ' 123 '] each data is enclosed in single quotation marks, separated by commas.List is an ordered list that you can add cells to, append a

The string in Python is represented by an array, which is similar to the C language (Python is written in C). Because of the character of the string: it is represented by an array of contiguous addresses in memory, so only an exception to the string

#运行以下程序:#! /usr/bin/env python#coding =utf-8File = open (' All_hanzi.txt ', ' WB ')Listhz = []N=0For ch in xrange (0x4e00, 0X9FA6): Print UNICHR (CH), File.write (UNICHR (CH)) #此行出错. Correct: File.write (UNICHR (CH). Encode (' GBK ')) encode (

(Reproduced Please specify Source:http://blog.csdn.net/buptgshengod)1. BackgroundHighly Recommended reading (http://www.cnblogs.com/jerrylead/archive/2011/03/13/1982639.html)SVM (Support vector machines).SVM is a binary classifier, which is a

Python is a computer programming language.#the statement at the beginning is a comment , the comment is for the person, can be any contentEach of the other lines is a statement, and when the statement ends with a colon : , the indented statement is

The web crawler in the salary survey of "", saves the captured results to the excel file, and pulls the Web Crawler I have been learning Python for a while, and I have learned a little about it. Today I am going to go to practical drills: compile a

Python pycurl and pythonpycurl Common Methods: pycurl.Curl()  # Method for creating a pycurl object pycurl.Curl(pycurl.URL, http: //www .google.com.hk)  # Set the URL to be accessed pycurl.Curl().setopt(pycurl.MAXREDIRS, 5)  # Set the maximum number

Python study Note 2, basic knowledge, python study note knowledge 1. in python, # The comment content starts with the pound key, and the interpreter does not care about it; 2. in python: the indentation at the end of a colon is the code block.

Python multi-process concurrent operations in the process Pool application, pythonpool When using Python for system management, especially operating multiple file directories at the same time, or remotely controlling multiple hosts, parallel

Python study Note 3: array list and tuple, pythontuple List refers to the meaning of a list, which can store a set of data, such as classmates = ['zhangsan', 'lisi', '000000'] each data is enclosed in single quotes and separated by commas. List

Coroutine Study Notes and Study Notes I,Coroutine Introduction What is coroutine? Coroutine, also known as micro-thread, thread, English name Coroutine. Coroutine is a lightweight thread in user mode. Coroutine has its own register context and stack.