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As an old MOOC network( https://www.imooc.com/ )Fans, remember that there are many free path courses at the beginning of mooc.com. It's a good way to get started with a language. Now mooc.com has developed the charging mode and added many higher-level courses, which is a good thing, but the original free path can not be found. If there is an or ...

This blog post mainly explains the advanced features of list s, including aliasing, mutability, and cloning.These three attributes require special attention when assigning values.This note and code comes from MIT's public session, Lesson 5. <Introduction to Computer Science and Programming in Python>. aliasing For simple data t ...

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@Variable length position parameter Use the location parameter defined by * arg_name to represent any multiple location parameters; In Python standard library, * args is used to name indefinite length position parameter. Of course, we can customize this name; The type of indefinite length position parameter is tuple; In the ...

Python web crawler practice (2) 1, Demand analysis Crawling a novel from a novel website Two, steps target data website page Analysis data loading process Analyze the url corresponding to the target data Download data Cleaning, processing data Data persistence Key point: analyze the url corresponding to t ...

Recently, I was learning Python, trying to make a simple student management system with for and while loops. Now I have encountered the problem that I can't define the input data type and jump out of the for loop The first restriction is: if there is no integer input, the program directly reports an error, in which the conversion is used, code ...

Environmental preparation Front end framework semantic ui Python 3.6.4 pip install django The development tool is pyCharm Data model design The user table contains the following information User name Full name Gender Password Cell-phone number Creation time Update time Is it effective? The user/models.py user model is as follows user is the ...

First, the first application of this module SSH client Here is a simple code to understand import paramiko # Instantiate an ssh client object ssh = paramiko.SSHClient() # Automatically add the machine you want to connect to in know_host, ignore this verification, and pay attention to the passed parameter paramiko.AutoAddPolicy() ...

Function foundation Function: a function is an organized, reusable code segment used to implement a single or associated function. Function can improve the modularity of application and the reuse rate of code. Python provides many built-in functions, such as print(). You can create your own functions, which are called user-defined functions. De ...

(1) Foreword Through the use of data-driven testing, the input value and expected results can be parameterized. (for example: input data and expected results can directly read the data of Excel document) (2) ddt The ddt library can parameterize the variables in the test. When using ddt, use @ ddt decorator on the test class and @ data decorator ...