There are two lists with the same length. Now if you need to add the values in the lists one by one…
## Demand There are two lists: A and B. The date is stored in A, and the output under that date …
## Permutation generation You can use `itertools.product` to generate the permutation： ```pl…
3 ways to kill all python processes under linux This article mainly introduces 3 ways to kill al…
When using mac to install playwright, it prompts an error: ```plaintext PermissionError: [Errno…
Redis ordered set (Sorted Set) command ```plaintext ZADD ZREM ZCARD ZCOUNT ZSCORE ZINCRBY …
If you want a function to receive arbitrarily multiple parameters, you can use variable-length para…
## Requirement realize the pairing of the elements from two lists one by one. ## Ordinary met…
1. Python `enumerate()` function 2. `Itertools` module combination method ```plaintext impor…
Use selenium to add a cookie prompt error: ```plaintext Traceback (most recent call last): F…
## description Recently, my project was updated to python3, and the redis version was also updat…
python3 redis subscription and publishing ## demo example ```plaintext import redis clas…
## description After crawling `http://www.example.com/ajax-poets/`, convert the returned html in…
Instructions in the Numpy documentation: > "Return a contiguous array (ndim >= 1) in memory (C o…
## description In process of PIL.Image convert to numpy array When using `PIL.Image` to read …
## Introduction Usually everyone runs the program on their own computer and can directly visuali…
## SMTP **SMTP** (Simple Mail Transfer Protocol) is the Simple Mail Transfer Protocol. It is a s…
## scenarios we use shell language The shell language is a packaging script for a wide range of …
## Read data ### Read in a small amount of data View or modify the working directory ```pl…
## Introduction Pandas is an efficient data processing library. It uses dataframe and series as …
## Introduction For many people, converting PDF to editable text is just a need, but there is no…
For the recorded data, how to use Python to analyze or graph it? This article will introduce sev…
## description  The advantage of `spyder` is that the pictu…
This error means that **the module is called as a function**, but it cannot be called by itself. …
## 1 Introduction Measuring gene activity in individual cells requires destroying these cells in…
Statement: As a beginner, I record the learning content in the form of notes. If there is a mistake…
Due to the needs of the project, the py file recognized by the picture needs to be packaged into an…
## 1\. http service Start an http static file service with http module ```plaintext # python…
I believe that most of the friends who use pytorch to run programs have encountered this problem on…
## description I encountered a problem when installing `readability-lxml` on MacOS ```plainte…
When installing NodeJS, I got the import bz2 Error: ```plaintext ImportError: No module named b…
## problem after updating pip environment: Win10 since the system keeps reminding me to updat…
## description ### error message: ```plaintext cv2.error: OpenCV(3.4.3) C:projectsopencv-pyt…
## Connect Mysql with Python ```plaintext import mysql.connector conn = mysql.connector.connec…
## error1 > NewConnectionError('\<urllib3.connection.VerifiedHTTPSConnection object at 0x0000000…
## description I encountered the following error when installing imgaug using Python2.7: ```…
## description requests 2.21.0 requests-toolbelt 0.9.1 When uploading files using python r…
## Environment * macOS mojave - 10.14.1; * python 2.7.15/python 3.7.1. ## error message…
## bug overview ### Technology stack * nginx * uwsgi * bottle ### Error details …
## error message ```plaintext builtins.TypeError: 'NoneType' object is not iterable start_requ…
## introduction to python map function There are some built-in higher-order functions in python,…
## What is pipenv **pipenv** is a package management tool officially recommended by python, whic…
The example below uses OpenCV to convert coordinate system in Python. ## Cartesian to polar coo…
here is an example code block to converts a 10\*2 randomly generated Cartesian coordinates (rectang…
**Function**: Map the latitude and longitude to the map to view the distribution of the number of b…
In ArcMap, the operation is very simple. Use the Spatial Join tool directly. Pay attention to two p…
## Three ways to find the absolute value of python 1. Conditional judgment 2. Built-in func…
## description After Python3.0, keyboard input uses the input function: ```plaintext >>> x=i…
## Linux ```plaintext >>> import os >>> os.system("clear") ``` ## Windows ```plaintext…
## Introduction to box plots: Because the box chart is a graphical summary based on the five-num…
## data A common application scenario of the heat map is to draw the correlation coefficient hea…
**seaborn** is a package specially used for statistical data visualization, comparable to the ggplo…
Sometimes, you need to do complex Git operations, and there is a lot of intermediate logic. Using S…
Pycharm has always been mentioned when we learn and test python, which is not only easy to use, but…
## question The original question is this: > An integer, it is a perfect square number after …
The code below prompt error ```plaintext def change(tupleTest): tupleTest[0] = 2 tupleTes…
## description When doing an exercise question, the topic is: > Use the `map()` function to …
## 1\. Calculate the confusion matrix ```plaintext # Import the package that calculates the con…
This article summarizes the HOG+SVM related to pedestrian detection. Of course, there are also vehi…
## description wrong code: ```python Item['job_minpayment']=str(round(int(re.split('\-', Ite…
In scientific computing, the conversion of input data file format is a frequently encountered probl…
Jupyter Notebook modify the document path and browser settings I thought there was a lot of such…
try...except... monitor a piece of code, want to accurately locate the error type and error details…
## description Errors are often encountered in python development, but warning usually does not …
## description Run the Python program with a script and pass parameters, and an error is reporte…
Under Windows, this exception occurs during the process of opening a file in `a+` mode, reading the…
## description code: ```python import os file_open = open('F:/input1.txt') os.remove("F:/i…
## 1\. Get second-level timestamp, millisecond-level timestamp, and microsecond-level timestamp …
## Problem Description: After Python runs the simulation image, it is usually copied directly in…
## 1 File content difference comparison method The file content difference comparison is realize…
Let's talk! ! ! ! When doing performance monitoring, it will be more intuitive if you can displa…
## description If you run your code and get the error message like bellow: ```plaintext Attr…
According to the error, you know that the Scheduler startup under the Nova service failed, the corr…
```plaintext RuntimeError: An attempt has been made to start a new process before the …
Hello ~ Happy New Year, I haven't updated for a long time, I just got the error `SyntaxError: (Unic…
## error prompt  ## solution This is the pop-up problem inter…
## Solution: Python is a language that is very sensitive to indentation, which brings confusion …
I learned Python today, but I just started a problem, I didn't have a problem, but I will display "…
## Let's take a look at the prompt of mistake: I originally wanted to get a word cloud with Pyt…
For Django newbies, there will be many problems during the learning process, which often encounters…
Today I want to install the WXPython Third Directory to write Python's GUI, I found that the PIP co…
Error call method:  Correct call: ```python from sklearn.mo…
Recently written scraping scripts, some bad data will always occur in the acquired URL link, that i…
Solution for Python error: ImportRequestsError: No module named 'requests' ## **Case 1 "requests…
## **Description** When you meet this error, it means there are some problem with your Unicode e…
## Description If you meet this problem when reading a python script from you Terminal (like CMD…
## Problem description For example, editing two lines of code: ```python tf.keras.layers.Max…
### Description In python, if you meet this error, it means: > You wrote **numbers** in the f…
### **Reason** if you got this warning, it means you used too many `\` symbols, the `/` charact…
## **Error message** ```plaintext urllib.error.HTTPError: HTTP Error 403: Forbidden ``` ## …