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Last year, we did a community activity called "question and answer for seniors", which precipitated a lot of valuable interactive information, and then it was terminated for various reasons. Today, I started to talk with Tu Teng, and thought that the information was so quiet and wasteful. So try to use python to crawl the content of t ...

Coin station log 1 -- Python 3 crawler crawling blockchain news Blockchain is very popular recently, so I want to be a news crawling and analysis type media website. I can do it as soon as I say, but I always need a data source to be a media website. Where does the data source come from? I'll write this thing later. First, crawling... Anyway, ...

1. Variable of function Local and global variables: Any variable in Python has a specific scope Variables defined in a function can only be used inside the function, and those variables that can only be used in specific parts of the program are called local variables Variables defined at the top of a file can be called by any function in the fi ...

python3.6Using aiohttp, aiofiles library, asynchronous operationThe server code is as follows. After starting the service, it will listen to 0.0.0.0:8080 by defaultNo exception handling, applicable to small files, for reference only file_server.py: import aiofiles import asyncio import os from aiohttp.web import Response from aiohttp import we ...

Palindrome substring describe Given a string, your task is to calculate how many palindrome substrings are in the string. A substring with different start or end positions is counted as a different substring, even if it is composed of the same characters. Example 1: Input: "abc" Output: 3 Explanation: three palind ...

Writing skills of python setup.py file Environment: the latest version of setuptools. For a preliminary understanding of setuptools, please refer to This article 1. Custom command from setuptools import setup, Command class MyCommand(Command): description = "Description of the command" user_options = [] # This method ...

Online Process Recording for Network Deployment Take the example of recommending similar items: reco-similar-product Project Directory Dockerfile Jenkinsfile README.md config deploy.sh deployment.yaml index offline recsys requirements.txt service stat You can see that there are many files in the directory. Here is a brief description of the rol ...

Contents of this tutorial 7 Internet Internet access urllib urllib is a Python module for opening URL s. import urllib.request # open a connection to a URL using urllib webUrl = urllib.request.urlopen('https://china-testing.github.io/address.html') #get the result code and print it print ("result code: " + str(webUrl.getcode())) # read the d ...

Preface The text and pictures of this article are from the Internet, only for learning and communication, not for any commercial purpose. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Author: front-end counselor PS: if you need Python learning materials, you can click the link b ...

Today, I sorted out how to use mongodb in django project. The environment is as follows:ubuntu18.04, django2.0.5, drf3.9, mongoengine0.16 Step 1: configure mongodb and mysql in settings.py as follows (you can use both mysql and mongodb): DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', # database engine 'NA ...