Python

From the blog: Shanghai-leisurelyOriginal address: http://www.cnblogs.com/yoyoketang/tag/unittest/From selenium import WebdriverFrom selenium.webdriver.common.by Import byFrom Selenium.webdriver.common.keys import keysFrom Selenium.webdriver.support.

First, the script is suitable for e-mail testing in Linux, only need to fill in the sending account and password and sender can, and then use python./filename.py (in the current directory). If an error is sent, the error details are thrown

In our daily surfing the Web page, often see some good-looking pictures, we would like to save these images to download, or users to do desktop wallpaper, or used to make design material.Our most common practice is to choose Save as by right mouse

Random module Note: random.random: Randomly take a value.Note: Random.randint (range, Range): The value within the random range.Note: Random.randrange (range, Range): Random values such as 1-3 do not contain 3, same as range.Note:

I. OutlineNormal equation method for linear regressionLocal weighted linear regressionIi. details of the contents　　1. Normal equation solution of linear regressionLinear regression is the prediction of a continuous type of data. The example of

First, the package#面向对象: EncapsulationClass Person: def __init__ (self,name,age): """ constructor, which is executed automatically when the class is called. Can be used to encapsulate a variety of common parameters and so on.

There are several types of data that can directly act on a for loopA class of geometry data types such as list, tuple, dict, set, str, etc.The second class is generator including generators and functions with yield methodsThese objects, which can

A: Cimetidine like to exerciseB: Super Super Not Love fitness, like playing gamesStep1: ParticipleA: cimetidine/likes/fitnessB: Super/no/like/fitness, like/play/gamesStep2: Lists the set of two

View the internal STR functionality, which can be viewed in the same way as int, or by using Type (str), dir (str).1. Capitalize: Capitalize first letterS.capitalize (), string" Parr " = str1.capitalize ()print(result)# returns ParrView Code2.

we know that a case statement is supported in a shell script, and when the positional parameter is empty, we are prompted how to use the scriptSo how do you do it in Python? Do you also use case? Case statements are not supported in Python, but

What is a constant? Constants are variables that . However, there are no immutable variables in Python. So constants are generally represented in Python in all uppercase (and conversely, variables are represented in all lowercase). "Personal

[1] [Python basics] using list and tuple[3]listOne of the data types built into Python is the list: lists. A list is an ordered set of elements that can be added and removed at any time.For example, by listing the names of all the classmates in the

1. Python inheritance and invoking the parent class memberThe Python subclass calls the parent class member in 2 ways, namely the normal method and the Super methodSuppose base is a base classclass Base (object): def __init__ (self):

I do not know whether there is a feeling, I clearly learned, why a code does not know where to write.Beginner function Programming Small partners often need to detect their own learning results, we now write a function to implement login and

Original link: http://www.cnblogs.com/dkblog/archive/2011/10/10/2205200.htmlInformation: Python official doc: "20.15." Uuid-uuid objects according to RFC 4122 "UUID Algorithm Introduction:" A universally Unique IDentifier (UUID) URN Namespace

1, List push to type:For simple function methods, use a table deduction instead of the map and filter functions as much as possible, because there are often fewer functions.For examplenums= [1, 2, 3]Squares = map (lambda x:x**2, nums) #使用mapSquares =

1 #tkinter check box action2 3 ImportTkinter as TK4 5Root =tk. Tk ()6Root.title ('Questionnaire Survey')7Root.geometry ('220x80')#Set Window Size8 9Flag_1 =FalseTenFlag_2 =False OneFlag_3 =False AList_content = ['your hobbies are:'] -Hobby_list =

Learning notes TF055: TensorFlow neural network provides a simple one-dimensional quadratic function. tf055tensorflow TensorFlow running mode. Load data, define hyperparameters, build networks, train models, evaluate models, and predict. Construct

Python simple construction of blocking single process, multi-process, multi-thread service, python multi-thread We can understand the working principle of apache in this way. 1 single-process TCP Service (congested)This is the most primitive service,

Collection module, 1. nametuple -- factory function for creating tuple subclasses with named fields Create a data type similar to the parent database. In addition to being able to access data using indexes, data can be iterated, and data can be