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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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...