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This example completes simple mathematical statistics work by simulating some random numbers as an experience of later data analysis Random walk: randomly generate 1 or - 1 random number to imitate a person's advance or retreat In this environment, some statistical work is carried out Random walk Do some preparations for the home ...

(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 ...

(1) Description Based on the previous one, we use lxml to extract the body content of blog garden essay and save it in Word document. The following modules are used to operate Word documents: pip install python-docx Modified code (mainly added the following paragraph in the while loop of link_crawler()) 1 tree = lxml.html.fromstring(h ...

Preface The new pneumonia epidemic that began to spread at the end of 2019 has affected people's hearts. As an individual, what we can do is to stay at home as little as possible. Seeing that some friends ask design students to help them put on masks for their heads, as technicians, I think there must be more people with such demands. It's bett ...

Thread pool from multiprocessing.dummy import Pool The callback function asynchronously performs some operation on the elements in the iteratable object Note: callback must have one parameter and only one parameter Asynchronous is mainly used in time-consuming operations from multiprocessing.dummy import Pool pool = Pool(3) # Instantiat ...

Personal Blog Visit http://www.x0100.top  Trio, translated as Trio, provides easier asynchronous programming and is a more advanced encapsulation of asyncio. It attempts to simplify complex asyncio modules.Simpler to use than asyncio and Twisted, but equally powerful.The project is still young and ...

Compile and install OpenCV 0-1. Uninstall opencv and opencv_contrib installed by pip or conda before installation: pip uninstall opencv-contrib-python pip uninstall opencv-python 0-2.install NumPY in Python environment first pip install numpy 1. Download OpenCV source code: https://github.com/o ...

For projects written locally, the running results can only be viewed by ourselves and cannot be used by others. If you want to go online, you can deploy the project on the cloud server through Django+Nginx+UWSGI. At this time, other users only need to enter the URL address to use the project. Pre depl ...

Article directory 1. Preface 2. Introduction to Matplotlib 3. installation 4. Drawing basis 4.1 plot() function 4.1.1 Chinese display 4.1.2 text display 5. Drawing of common charts 5.1 histogram 5.1.1 simple example 5.1.2 function definition 5.1.3 histogram of normal distribution 5.2 pie chart ...

I usually like making python modules. Recently, I made a module "nss" (which is used for database) and I uploaded it to pypi. ... First, you can download this module with 'pip install nss'. Because the size of the module itself is relatively small and the download is relatively fast, it can be ...