Generators in python

1 Introduction to generator Building in Python iterator You must implement a class with iter() and next() methods to track the internal state and raise StopIteration when there is no return value. The Python generator is an easy way to create iterators. Simply put, a generator is a function that returns an object (iterator) that can be iter ...

Posted by jon2396 on Thu, 13 Jan 2022 12:59:38 +0100

DataWhale - (hands on data analysis) - task02 (Section 1 of data cleaning and feature processing) - 202201

Hands on data analysis Chapter 2: data cleaning and feature processing import numpy as np import pandas as pd #Load data train csv df = pd.read.csv('train.csv') df.head(10) Brief description of data cleaning The data we get is usually unclean. The so-called unclean means that there are missing values and some abnormal points in the data, w ...

Posted by ss-mike on Thu, 13 Jan 2022 11:55:55 +0100

Save time and effort. This is probably the fastest way to write GUIzui in Python?

In the previous article, I introduced PySimpleGUI, a python GUI artifact, and demonstrated some basic usage. Many readers' feedback said that this is really simple, except that the interface is a little "primitive" and there is nothing wrong with it. In fact, GUI interfaces such as PySimpleGUI are not comparable to Web pages. It is t ...

Posted by johanlundin88 on Thu, 13 Jan 2022 11:01:23 +0100

PySnooper python debugging prerequisites

Github: https://github.com/cool-RR/PySnooper install $ pip install pysnooper Conda with Conda forge channel: $ conda install -c conda-forge pysnooper Arch Linux: $ yay -S python-pysnooper Fedora Linux: $ dnf install python3-pysnooper readme file PySnooper is a simple debugger. If you've used Bash, it's like set - x py ...

Posted by amites on Thu, 13 Jan 2022 10:40:40 +0100

Python automated test framework, who is your only one? You will understand after reading this article

Python's unique advantages have created a series of test frameworks. In front of these test frameworks, which is better or worse? How to choose? As the saying goes, "there is no best, there is only the most suitable". Today, we will compete with the four mainstream automated testing frameworks frequently used in Python to select the ...

Posted by Ajita on Thu, 13 Jan 2022 10:16:19 +0100

Concurrent programming using Python

Making computer programs run concurrently is a topic that is often discussed. Today I want to discuss various concurrency methods under Python.Concurrent modeThread ([thread])Multithreading is almost every program ape. When using each language, he will first think of tools to solve concurrency (JS programmers, please avoid). Using multithreadin ...

Posted by Mortana on Thu, 13 Jan 2022 08:05:38 +0100

Tianchi competition -- visual analysis of user emotion

Tianchi competition -- visual analysis of user emotion catalogue Tianchi competition -- visual analysis of user emotion preface 1, Read the data, check the basic situation and preprocess the data Import related Library Read data, basic analysis data Null value processing, data mapping Word segmentation analysis of comments 2, Word ...

Posted by Mirrorball on Thu, 13 Jan 2022 06:37:58 +0100

Web automation considerations

Like the App automation chapter I released, the first is how to locate our elements, because automation is to simulate the process of manual testing, so you need to test that function point, locate the element first, and then do the corresponding operations. The details are as follows Common web elements are located as follows: 1. Use xpth to ...

Posted by danielholmes85 on Thu, 13 Jan 2022 04:37:19 +0100

Python -- loop branch structure

As a python beginner, I want to write a blog to record my growth process and share what I have learned. The following are some superficial views and personal understanding of Python language by a python beginner. #while loop ''' The syntax format of the while loop is as follows: while conditional expression Loop body statement ''' #Exercise o ...

Posted by Meissa on Thu, 13 Jan 2022 04:18:29 +0100

Automatic quick start -- python(17) -- mail sending

It's safe here. After we ran the automated script, did we want to send the email together at one go? Complete a gorgeous real automation. catalogue zmail operation Plain text sending: Send in html format: Send in attachment format: encapsulation zmail operation    1. import zmail    2. Mail content, including ...

Posted by cybtec on Thu, 13 Jan 2022 02:06:50 +0100