Embedded Software & Tools

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Full Stack Development with Python: Building Cloud-Native Applications with FastAPI and Docker

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Full Stack Development with Python: Building Cloud-Native Applications with FastAPI and Docker

1. Practical Steps for Full Stack Development with FastAPI and Docker 1. Project Initialization and Basic Configuration of FastAPI # main.py from fastapi import FastAPI from pydantic import BaseModel app = FastAPI(title="Cloud-Native API Service") # Automatically generate Swagger documentation class Item(BaseModel): name: str price: float @app.post("/items/") async def create_item(item: Item): """Asynchronously handle POST requests with … Read more

Essential Skills: TA-Lib as the Secret Weapon for Quantitative Traders Using Python

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Essential Skills: TA-Lib as the Secret Weapon for Quantitative Traders Using Python

It was a hot Friday afternoon, and the air conditioning in the trading room was buzzing. As I attempted to manually calculate the Bollinger Bands using Pandas, the screen suddenly blue-screened—this was the sixth time the Jupyter kernel crashed due to numpy array out-of-bounds errors. Old Zhang, the quant in the adjacent cubicle, leaned over … Read more

Exclusive Insights into the Python Geospatial Data Analysis Library GeoPandas: An Essential Tool for Professionals

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Exclusive Insights into the Python Geospatial Data Analysis Library GeoPandas: An Essential Tool for Professionals

It was a memorable Friday evening when I attempted to process five million GPS records of taxis in New York City using GeoPandas, and my 16GB RAM MacBook Pro began to roar like a helicopter taking off. This wasn’t my first time encountering issues during geospatial analysis, but watching the Jupyter kernel crash repeatedly made … Read more

The Dash Library in Python: The Ultimate Solution for Building Enterprise-Level Data Analysis Dashboards

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The Dash Library in Python: The Ultimate Solution for Building Enterprise-Level Data Analysis Dashboards

1. Introduction to the Library: The Role of Dash in Real Life Dash is one of the most powerful interactive web application frameworks in the Python ecosystem, developed by the Plotly team, specifically designed for data analysts and scientists to build data visualization dashboards. Unlike traditional web development that requires knowledge of HTML, CSS, and … Read more

Python: Building Infinite Possibilities in the Digital World with Code LEGO

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Python: Building Infinite Possibilities in the Digital World with Code LEGO

## Introduction: When Programming Meets the LEGO Philosophy In the realm of digital creation, Python is like a box of universal LEGO bricks—it is not just a programming language, but a magical key that opens the door to creativity. Over 15 million developers worldwide (2023 PyPL data) choose Python as their primary tool, from NASA's … Read more

PyYAML: Simplifying Configuration Management in Python!

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PyYAML: Simplifying Configuration Management in Python!

Hello everyone! I am your old friend from Python. Today, we are going to talk about a very practical skill that is often overlooked in real projects: handling YAML files. You may have seen files ending with .yaml or .yml in various configuration files; they are more concise and readable than JSON, making them ideal … Read more

Building a Potential Stock Prediction System with Python and SQLite! A Must-Have for Retail Investors!

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Building a Potential Stock Prediction System with Python and SQLite! A Must-Have for Retail Investors!

Hello everyone, I am your old friend! The previous article “One-Click Stock Selection Tool: Easily Capture Tomorrow’s Potential Stocks with Python!” received a lot of positive feedback, but many friends reported that configuring MySQL was too troublesome, especially for beginners, as installing and debugging the database environment is simply a nightmare. Today, I bring you … Read more

Python Basics: Making Network Requests with the Requests Library

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Python Basics: Making Network Requests with the Requests Library

When learning Python, we often need to interact with the web, such as scraping web pages, calling third-party APIs, or retrieving data from backend services. Although Python’s built-in <span>urllib</span> is comprehensive, it can feel a bit cumbersome to use. At this point, let me introduce a “great helper”—requests. It allows you to perform various HTTP … Read more

Understanding Python Scope and Recursive Functions

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Understanding Python Scope and Recursive Functions

Python Scope Local Scope: Variables defined within a function have local scope and can only be accessed inside that function. When the function execution ends, these local variables are destroyed. For example: def my_function(): local_variable = 10 print(local_variable) my_function() # print(local_variable) # This line will raise an error because local_variable is out of scope Global … Read more

The Ultimate Guide to Playwright: The Python Automation Tool That Makes Browsers Obey!

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The Ultimate Guide to Playwright: The Python Automation Tool That Makes Browsers Obey!

Imagine being a programmer who has to repeat some boring and tedious tasks every day— logging into websites, submitting forms, scraping data, checking webpage content, or taking screenshots and recording screens. Isn’t it annoying? Now, what if we told you that Python can make browsers obey through automation tools and help you complete these heavy … Read more