python multithreading to establish proxy ip pool

I've written about using single thread to build proxy ip pools before, but you will soon find that it's too slow to test proxy IPS one by one with single thread. It takes a long time to finish running once and it's totally unbearable. So this article is to use multithreading to build the ip pool, which is much faster than using single thread. T ...

Posted by Kyrst on Sun, 15 Sep 2019 01:56:21 -0700

python daily classical algorithmic problem 5 (basic problem) +1 (more difficult problem)

First: Five basic algorithmic questions 1. Armstrong Number If an n-bit positive integer equals the sum of the n-th power of its digits, it is called an Armstrong number. Determine whether the number entered by the user is Armstrong. (1) Topic analysis: Here we need to first get the number of digits, and then cut out the number of each digit ...

Posted by mattvenables on Sat, 14 Sep 2019 07:59:03 -0700

Python crawls all video barrages of any up master at station b

It is not difficult to climb the barrage of station b. To get all of the up master video curtains, we first go to the up master video page, that is, the up master video page. https://space.bilibili.com/id/video This page. Press F12 to open the developer menu and refresh it. There is a getSubmitVideo file in the xhr file of the network. This fil ...

Posted by malbera on Thu, 12 Sep 2019 06:41:43 -0700

Recommendation of 6 Python Special Text Format Processing Libraries

Links to the original text: https://www.jianshu.com/u/8f2987e2f9fb Below are some libraries written by Python for parsing and manipulating special text formats, hoping to help you. 01.Tablib https://www.oschina.net/p/Tablib Tablib is a Pytho ...

Posted by xinnex on Thu, 12 Sep 2019 02:49:36 -0700

py concurrent programming (threads, processes, coroutines)

I. Operating System Operating system is a system program used to coordinate, manage and control computer hardware and software resources. It is located between hardware and application. Programs are software running on the system with certain functions, such as browsers, music players and so on. The definition of the operating system's kernel: ...

Posted by iyia12co on Thu, 12 Sep 2019 02:04:50 -0700

Structured Streaming Simple Data Processing - Read CSV and extract column keywords

Preface Recently, when Baidu wants to learn Spark's newer Structured Streaming, all of them are monotonous wordcount s, which are quite speechless.You have to figure out for yourself what you can do with the Select and Filter operations of the Dataframe.Because of using Python, using Pandas, and trying to turn Pandas to process, readStream doe ...

Posted by bigphpn00b on Wed, 11 Sep 2019 16:56:03 -0700

3. pytest Chinese Document--Writing Assertions

Catalog Writing assertions Writing assertions using assert Write assertions that trigger expected exceptions Optimization of special data structure comparison Add custom instructions for failed assertions Details of assertion introspection Overwrite Cache Files To be able to assert se ...

Posted by if on Wed, 11 Sep 2019 02:04:23 -0700

Introduction to python Basics

## Statement: Individual learning arrangement, for reference only Basic grammar Note: Identify "#", triple double quotation mark ", comment content". Line and indentation: Statements with four spaces hanging indentat ...

Posted by ljschrenk on Tue, 10 Sep 2019 20:55:13 -0700

Image Similarity Algorithms--Detailed Explanation of SIFT Algorithms

Links to the original text: https://blog.csdn.net/jiutianhe/article/details/39896931 <link href="https://csdnimg.cn/public/favicon.ico" rel="SHORTCUT ICON"> <title>Image similarity algorithm--SIFT Algorithm details - jiutianhe Co ...

Posted by JustLikeIcarus on Tue, 10 Sep 2019 05:59:04 -0700

2. pytest Chinese Document - Use and Call

Catalog Use and invocation Call pytest through python-m pytest The status code returned at the end of pytest execution Get help information Maximum number of test cases allowed to fail Execute the specified test case Execute test cases in the specified module: Execute test cases in th ...

Posted by wiggly81 on Tue, 10 Sep 2019 01:46:54 -0700