python tkinter examples

Python uses the Scipy package's SIFT method for image recognition examples, ScipyThe scipy package contains a toolbox dedicated to common problems in scientific computing. Different submodules correspond to different applications. Such as interpolation, integration, optimization, image processing, and special functions.Scipy can be compared with other standard scientific computing libraries, such as GSL (gn

The examples in this article describe Python coprocessor usage. Share to everyone for your reference. Specifically as follows: The function is written as a task to handle a series of inputs sent to him, called a coprocessor. ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14-15 16 def print_matchs (matchtext): print "Looking for", matchtext while true:line = (yield) #用 The yield statement and creates a c

thought of it, Py is a good evil word#abandon python to py.#the numbers contained in Python are: integers, floating-point numbers, complex numbers, decimal numbers with fixed precision, rational numbers with numerator and denominator#supported operations are: + for addition, * for multiplication, * * for exponentiationPrint(123+222)#two numbers added directlyPrint(1.5 * 4)Print("You know:"+ str (2**10))#No

The examples in this article describe the techniques used in the use of properties and methods in Python programming. Share to everyone for your reference. The specific analysis is as follows: One, property In Python, attributes are divided into public and private properties, and public properties can be invoked outside the class, and private properties cannot

This article mainly introduces the common dictionary dict operation methods in python. The example summarizes the dictionary operation skills of Python, which is of great practical value, for more information about how to use the dictionary dict in python, see the examples in this article. Share it with you for your re

Python implements multiple inheritance examples with and without parameters. This example describes how to implement multi-inheritance with and without parameters in Python. We will share this with you for your reference. The details are as follows: 1. Multi-inheritance without Parameters # Author: hhh5460 # Time: 2017.07.18class A (object): def show_x (self): pr

Python learning examples This article includes the Fibonacci series written in Python, the three-digit daffodils, and the basic code for buying hundreds of chickens for hundreds of dollars. Fibonacci series: ''' Def hanshu (n ): N_1 = 1 N_2 = 1 M = n Sumn = 0 For a in range (1, m + 1 ): If m = 1: Return n_1 If m = 2: Return n_2 Sumn = n_1 + n_2 N_2 = n_1 N_1 = su

This article mainly introduced the Python Paramiko module realizes the remote control and the transmission example, very has the practical value, the need friend can refer to the next This article describes the Python Paramiko module for remote control and transmission examples, to share with you, specifically as follows: 1 installation sudo pip install Paramik

This article mainly introduces the Python getopt detailed and simple examples of relevant information, the need for friends can refer to the following Python getopt detailed Function Prototypes: Getopt.getopt (args, shortopts, longopts=[]) Parameter explanation: Args:args is a list of parameters that need to be parsed. General use Sys.argv[1:], this can

package on the machine and the target machine (note, all must have) sudo easy_install fabric Currently 1.6 version (or with Pip install, same) After installation, you can see if the installation was successful [ken@~$] which fab/usr/local/bin/fab After loading, you can browse the official documents Then, you can do it. Hello WorldFirst, the simple operation of the machine, there is a preliminary understanding, examples of sources and official website

The examples in this paper describe the usage of unittest in Python and share them for your reference. The specific usage analysis is as follows: 1. The UnitTest module includes the ability to write run UnitTest, and the custom test class integrates unitest. TestCase class, test method begins with test, and the run order is sorted by the name of the test method, with a special method:①setup (): Run before

The examples in this paper describe the usage of pygame modules in Python and share them for your reference. Here's how: Import Pygame, sys from pygame.locals import * #set up Pygame pygame.init () Windowsurface = Pygame.display.set_mode ((500 , (+), 0, +) pygame.display.set_caption ("Hello, World") BLACK = (0, 0, 0) White = (255, 255, 255) RED = (255, 0, 0) GRE EN = (0, 255, 0) BLUE = (0, 0, 255) Basicfon

Test steps1. Import the UnitTest module Import UnitTest 2. Write the test class inheritance unittest. TestCaseClass Tester (UnitTest. TestCase) 3. Methods for writing tests must begin with testdef test_add (self)def test_sub (self) 4. Test the function points using the method provided by the TestCase class 5. Call the Unittest.main () method to run all methods that begin with testCopy the Code code as follows: if __name__ = = ' __main__ ': Unittest.main ()

This article mainly introduces the binary search algorithm and related Python implementation examples. BinarySearch is also the most basic knowledge in algorithm learning. For more information, see Binary Search idea:When an ordered table is used to represent a static search table, the search function can be implemented using binary search. In Binary Search, the interval of the record to be queried is deter

Examples of python traversal strings (including Chinese characters) Python Traversal string (including Chinese characters) S = "china" for j in s: print j First, what encoding is your 'A? Maybe not what you think of gbk >>> A = 'China' >>> In this case, if it is 6 words (word), it indicates UTF-8. If it is 4 words, it indicates gbk. In addition, both UTF-8

Examples of Python random number usage [Based on the random module], pythonrandom This example describes how to use a Python random number. We will share this with you for your reference. The details are as follows: 1. random. seed (int) A seed value is given to a random number object to generate a random sequence. For the input of the same seed value, the random

This article describes how to use the kNN algorithm using Python code examples. Here is an example to predict the gender of Douban movie users. If you need a friend, refer to the adjacent algorithm, or K-Nearest Neighbor (kNN, k-NearestNeighbor) classification algorithm is one of the simplest methods in Data Mining classification technology. The so-called K-Nearest Neighbor refers to k nearest neighbors, wh

Python uses reportlab for drawing examples This article describes how to use reportlab in python. Preparations Development Environment: python2.6, reportlab Prepare a Chinese font file: simsun. ttc Code: The Code is as follows: #! /Usr/bin/env python2.6 # Coding: UTF-8 Import traceback From reportlab. graphics. shapes import Drawing From reportlab. graphi

Python language type: Strong-type language, dynamic languageExamples1. Ask for the sum of the odd number within 100The odd number can be printed by a number that is not equal to 0 for 2, or by using the For loop stepS=0For I in range (1,100,2)S+=iPrint (s)2. Seeking the sum of the factorial of theUse the For loop to set the range, accumulate in the loopA=1S=0For I in Range (1,6):A=a*iS=s+aPrint (s)3. Given a 5-digit number, reverse printFirst to deter

Objective This article is mainly about how Python uses the zip function to traverse multiple iterators at the same time, and the version in the text is the Python3,zip function, which is a built-in Python function. The following words do not say more, to see the detailed content. Application examples >>> List1 = [' A ', ' B ', ' C ', ' d '] >>> list2 =