“Just a little click, please follow me~”👇 “You know—when a person is feeling down, they particularly enjoy watching the sunset.” — Antoine de Saint-Exupéry, “The Little Prince” In Python programming, operations on directories are a fundamental and important skill. Whether for file management, data processing, or project deployment, operations such as creating, deleting, and traversing … Read more
Optimizing Python Code Performance: Enhancing Execution Speed In the daily programming process, writing a fully functional program is just the first step; subsequent performance optimization is also an essential aspect of development that cannot be overlooked. Especially when using Python, due to its interpreted and dynamically typed nature, the execution efficiency may be relatively lower … Read more
🔄 Core Function of PUT Requests Full Update! Replaces the entire resource data, suitable formodifying the entire data scenarios: Overall update of user information Configuration parameter overwrite reset Complete replacement of document content 🚀 Python Code Template import requests # Target resource address (with ID) url ="https://api.example.com/users/456" # Construct full data payload = { "name":"小蓝书", … Read more
Today, I want to share a very common pitfall in Python—strange behavior when the default value of a class attribute is a mutable object (like a list). A seemingly simple example Let’s first look at a simple <span>Person</span> class definition: class Person: def __init__(self, name:str, frients:list=[]): self.name = name self.frients = frients def show_frients(self): print(f"{self.name}, … Read more
Does anyone understand? Every day at work feels like acting in “Ex Machina”: practicing Ctrl+C/V until I get tendonitis, memorizing Excel formulas better than English words, and still manually changing 300 file names for the monthly report! What’s even more frustrating is that the new intern at the next desk can just write a couple … Read more
Have you ever encountered these frustrating moments? – Project A requires <span><span>Python 3.7</span></span>, but Project B can only use <span><span>Python 3.10</span></span>, frequently switching versions leads to confusion; – Code that runs perfectly on your local machine throws errors on another computer due to incompatible dependency versions; – When installing a new package, accidentally overwriting critical … Read more
🐍 Introduction to Python: Mastering Programming Basics from Scratch 🌟 Chapter 1: Introduction to Python Python is a object-oriented, interpreted high-level programming language with the following core advantages: • Concise and elegant syntax design • Powerful standard library and third-party ecosystem • Cross-platform compatibility (Windows/macOS/Linux) • Active developer community support 🛠️ Chapter 2: Environment Installation … Read more
Among Python’s data processing libraries, NumPy is undoubtedly the most fundamental and powerful. Today, we will discuss how to use NumPy for complex data operations to help everyone better master this powerful tool. As a library that supports efficient array operations, NumPy has significant advantages when handling large-scale data and performing mathematical calculations. 1. Basic … Read more
1. Preparation Before you start writing code, you need to ensure that Python and the `pygame` library are installed. If you haven’t installed `pygame`, you can do so using the following command in the cmd terminal: pip install pygame 2. Snake Game Code Here is the complete code: import pygame import random import time # … Read more
Practical Data Analysis with Python: Uncovering Millions in E-commerce Sales Data 1. Case Background: Annual Sales Data from an E-commerce Platform Dataset: 2024 All-Platform Order Data (Simulated) Order ID, User ID, Product Category, Unit Price, Quantity, Payment Time, City Dataset Size: 500,000 orders, 200,000 users, 1000+ SKUs Analysis Goals: Identify high-potential products, optimize marketing strategies, … Read more