AI 资讯
Python Setup for Real Projects: VS Code, venv, pip and requirements.txt
Many Python beginners can write basic programs but get stuck when they try to run a real project on their own laptop. The issue is not always coding. Sometimes the real problem is setup . You may know loops, functions, and lists, but still face problems like: ModuleNotFoundError Python is not recognized Package installed but not working in VS Code Wrong interpreter selected These are common beginner setup issues. Why online compilers are not enough Online compilers are good for quick practice. But real Python projects need: project folders multiple files external packages virtual environments dependency files terminal commands debugging tools Git basics So, when the goal is to build real projects, it is better to move to a local Python setup early. Basic Python project setup flow A simple Python project setup flow looks like this: Install Python Install VS Code Create project folder Create virtual environment Activate virtual environment Install packages Save requirements.txt This setup may look basic, but it prevents many beginner-level errors later. Example folder structure A beginner-friendly Python project folder can look like this: python-project/ │ ├── main.py ├── requirements.txt ├── README.md └── venv/ Here is what each file or folder means: main.py is the main Python file. requirements.txt stores project dependencies. README.md explains the project. venv/ contains the virtual environment. Create a virtual environment Create a virtual environment using: python -m venv venv Activate it on Windows: venv \S cripts \a ctivate Activate it on Mac/Linux: source venv/bin/activate A virtual environment keeps each project’s packages separate. This helps avoid package conflicts when working on multiple Python projects. Install a package After activating the virtual environment, install packages using pip . Example: pip install requests Now create a Python file: import requests response = requests . get ( " https://api.github.com " ) print ( response . status_code ) If
开发者
Lies, Damn Lies and Database Benchmarks
submitted by /u/j1897OS [link] [留言]
AI 资讯
In praise of memcached
submitted by /u/Either_Collection349 [link] [留言]
开发者
Why I Pointed a Brand-New Browser Engine at YouTube
submitted by /u/Inevitable_Back3319 [link] [留言]
开发者
An interactive voyage through all orders of magnitude - from the smallest meaningful scales to the largest structures of the observable universe.
submitted by /u/KingOfZalo [link] [留言]
开发者
Solving LLVM's MayAlias bottleneck in zero-copy serialization formats
submitted by /u/aegismuzuz [link] [留言]
开发者
Quarkus REST with Apache Camel and Keycloak
submitted by /u/piotr_minkowski [link] [留言]
AI 资讯
We log into our own admin console with our own SAML. Here's what it caught.
There's a version of dogfooding that's a slogan, and a version where your own employees can't ship code until the bug is fixed. We run the second kind. The Authagonal staff console, the one we use to manage every tenant, authenticates through Authagonal itself: SAML single sign-on from our Entra directory, with SCIM deciding who gets in and what they can do. There is no separate admin password table. We deleted it. If our own SAML is broken, we are locked out of our own product. That's uncomfortable in exactly the useful way. It turns "SSO is an enterprise feature we support" into "SSO is the only way the people who built this get to work today." Here's what being our own customer caught. A trimmed build that broke signature verification We publish the auth server trimmed, to keep the image small. Trimming aggressively deletes code it can't prove is used, and reflection hides usage from it. .NET resolves its XML-signing crypto algorithms by name, reflectively, through CryptoConfig . The trimmer couldn't see those types were needed, removed them, and SignedXml quietly came back unable to build the algorithm. SAML signature verification, the step that proves the login is real, threw a null reference at runtime. The unit tests passed, because they ran against the untrimmed build where the types still existed. Only the trimmed production artifact failed, and it failed at the exact moment a human tried to sign in. We ship the auth server untrimmed now, with a healthy distrust of trimming anything near reflection-based crypto. If we only supported SAML rather than living on it, this is a customer's incident report instead of ours. Provisioning is the actual login Authenticating a user is the easy half of SSO. The hard half is deciding what they're allowed to do and keeping it in sync as people join and leave. We drive that with SCIM: Entra group membership maps to roles, resolved at the moment a token is issued, not copied once at account creation. Add someone to the righ
开发者
State of the Art of Platform Engineering • Abby Bangser & Charles Humble
submitted by /u/goto-con [link] [留言]
产品设计
In memory of the man who put red squiggles under words
submitted by /u/mareek [link] [留言]
AI 资讯
Python for Beginners — Part 6: Functions
Part 6 of a beginner-friendly series on learning Python from scratch. In Part 5 , we learned to organize data with lists, dictionaries, and other collections. Now it's time to organize our code itself. A function is a reusable block of code that performs a specific task. Instead of writing the same code multiple times, you write it once in a function, then call that function whenever you need it. This is the foundation of writing clean, maintainable programs. Defining and Calling Functions The basics def greet (): print ( " Hello, World! " ) greet () # Call the function Use def to define a function. The function name is followed by parentheses and a colon. The indented block below is the function's body. When you call the function (by typing its name with parentheses), Python runs the code inside it. Functions with parameters Most functions need information to work with. That's what parameters are for: def greet ( name ): print ( f " Hello, { name } ! " ) greet ( " Ramesh " ) # Hello, Ramesh! greet ( " Priya " ) # Hello, Priya! name is a parameter (placeholder). When you call greet("Ramesh") , name becomes "Ramesh" inside the function. Multiple parameters: def add ( x , y ): print ( x + y ) add ( 5 , 3 ) # 8 add ( 10 , 20 ) # 30 Return values A function can calculate something and give the result back to you with return : def add ( x , y ): return x + y result = add ( 5 , 3 ) print ( result ) # 8 The return statement stops the function and sends a value back. The caller can then use that value. def greet ( name ): message = f " Hello, { name } ! " return message greeting = greet ( " Ramesh " ) print ( greeting ) # Hello, Ramesh! A function can return multiple values as a tuple: def get_user_info (): return " Ramesh " , 25 , " Chennai " name , age , city = get_user_info () print ( name , age , city ) # Ramesh 25 Chennai Arguments: Positional vs Keyword There are two ways to pass values to a function: Positional arguments Arguments are matched by position: def describ
AI 资讯
I Revived My React/Redux App with Turtle AI and Learned Where AI Guardrails Can Go Too Far
Nine years ago, I built two versions of Highlander: an original jQuery application and a React/Redux version that used the same backend concepts. After successfully reviving and deploying the jQuery version, I turned to Highlander-react-redux. The goal was not simply to make an old repository run again. I wanted to improve the product, modernize its architecture without rewriting everything, and deploy something people could actually explore. This time, I used Turtle AI: a plan-driven engineering workflow built around Codex. It gave the AI explicit phases for planning, implementation, verification, testing, documentation, security review, and performance review. The process worked—but it also taught me that more guardrails do not automatically create a more efficient workflow. The Problem: More Than an Old React App The application had the typical problems of a nine-year-old project: Legacy React class components Complicated Redux connections Hardcoded localhost API URLs Authentication state disappearing after refresh Unprotected client routes Large Express route files mixing routing and business logic Inconsistent API errors No API versioning Limited filtering and pagination Outdated deployment assumptions UX gaps for demo users The app also had useful product ideas that had never been fully developed. Coaches could manage teams, players, and stats, but the experience needed stronger analytics, season support, collaboration, and more reliable workflows. I did not want to throw away the existing application and replace it with a new stack. The challenge was to preserve its original value while making targeted improvements. The Approach: Plan-Driven Product Engineering My previous Highlander revival prioritized: Get the app running locally Stabilize authentication and data Improve the demo experience Harden security Deploy For the React/Redux version, I followed a more structured workflow: Analyze the repository Create an implementation plan for one feature Implement
AI 资讯
The 80/20 Rule of AI Code — Why the Last 20% Takes 80% of Your Time
AI wrote the first 80% of my feature in 10 minutes. The code was clean. The logic made sense. The...
产品设计
Pressure-Testing My Own Explanations — A Swift Writing Exercise
When you've worked with a concept long enough, there's a gap that can quietly open up between "I know...
开发者
Every Choice Changes Everything: The Show
submitted by /u/dwaxe [link] [留言]
开发者
Microsoft's Secret 90s Weapon That Made Windows Fast
submitted by /u/dukey [link] [留言]
AI 资讯
Tired of Searching for Different Base64 Tools? I Built One Place for Everything
As developers, we've all been there. Q: Need to decode a Base64 string? Open one website. Q: Need to convert an image to Base64? Open another website. Q: Need to validate a Base64 string? Search Google again. Q: Need to compare two Base64 values? Yet another tool. I found myself repeatedly switching between different websites, browser tabs, and terminal commands just to perform simple Base64-related tasks. So I decided to build something that solved this problem for me. The Goal Keep every commonly used Base64 utility in one place and make it work directly in the browser. No installations. No command-line knowledge required. No account creation. Just open the website and use the tool What You'll Find Instead of only providing an encoder and decoder, I wanted to cover the complete Base64 workflow. Some of the available tools include: Base64 Encode / Decode Image to Base64 Audio to Base64 Video to Base64 Base64 Validator Base64 Detector Base64 Compare Base64 Repair Base64 URL Encode Base64 File Decoder CSS Data URI Converter And more are being added regularly. Why I Built It Honestly, this started as a personal productivity project. I was using different Base64 tools almost every week and got tired of bookmarking multiple websites for related tasks. Having everything in one place turned out to be surprisingly useful, so I decided to make it public. Give It a Try https://base64converters.com I'm continuously improving it and would love feedback from fellow developers. Are there any Base64-related tools or workflows you use frequently that should be included?
AI 资讯
React Server Components in 2026: Patterns, Pitfalls, and When to Actually Use Them
React Server Components in 2026: Patterns, Pitfalls, and When to Actually Use Them Most React Server Components problems stem from teams treating them like regular components with a new rendering location. The architecture shift is deeper than that. RSC fundamentally changes where code executes, what data can cross boundaries, and how developers reason about state. Teams that ignore these constraints burn weeks debugging serialization errors and performance regressions. The pattern that production teams overlook is the server/client boundary itself. Understanding where computation happens, what props can serialize, and when to break out of server rendering determines whether RSC improves or destroys your application's performance. Core Concepts: How RSC Actually Works Under the Hood React Server Components execute on the server and send rendered output to the client. No JavaScript bundle ships for these components. The client receives a serialized tree describing what to render, along with holes for client components to fill. The execution model works like this: the server runs your component tree, fetches data directly, and serializes the result. When the payload reaches the browser, React reconstructs the UI without hydrating server component code. Only client components hydrate with their JavaScript bundles. RSC execution flow from server to client This distinction is critical. Server components cannot use hooks like useState or useEffect because they don't exist in the browser. They render once on the server per request. Client components ship JavaScript and can use the full React API. The implication here is that your component tree becomes a mix of server and client code. The boundary between them determines your bundle size, waterfall depth, and debugging complexity. Production-Ready Patterns: Streaming, Suspense, and Data Fetching The correct pattern for data fetching in server components eliminates the request waterfall. Fetch data directly in the component
AI 资讯
The Engineer Identity Crisis: AI Didn't Take Your Job, It Doubled It
Everyone says our job got easier. The people doing it are quietly falling apart. Here's the part nobody at the dinner table wants to hear: AI didn't make software engineering easy. It made it relentless. Your uncle thinks you press a button now. Your PM thinks the estimate should be half what it used to be. LinkedIn thinks you're either an "AI-native 10x engineer" or a dinosaur waiting for the meteor. And somewhere in the middle of all that noise is you, doing two jobs at once and wondering when you stopped recognizing the one you signed up for. If that landed, keep reading. This one's for you. 💡 The Lie Everyone Has Agreed To Believe The story the world has settled on is simple: AI writes the code now, so the hard part is over. It's a comforting story. It's also wrong in a way that's hard to explain to anyone who hasn't sat in the chair. Yes, the blank-file problem is mostly solved. Boilerplate, scaffolding, the first rough pass at a function, all of that is faster than it's ever been. The problem is "writing the lines" was never the expensive part of this job. The expensive part was always judgment. Knowing what to build, knowing why it breaks, knowing which of the model's three confident suggestions is the one that quietly corrupts your data at 2 AM is where the engineer earns their salt. AI didn't remove that work. It buried it under a pile of plausible-looking output you now have to review, verify, and own. So the meter didn't slow down. It moved. You spend less time typing and far more time deciding, validating, and cleaning up. To everyone watching from outside, that looks like less work. From inside, it's a heavier cognitive load on a shorter clock. Sound familiar? The Treadmill Nobody Put On the Job Description The cost no one talks about is the half-life of what you know is collapsing. Five years ago you could learn a framework and ride it for a few years. Now a tool you mastered in January has three competitors and a new paradigm by June. New model, new c
AI 资讯
How I Stopped Duplicating AI Skills Across Claude Code, Cursor, Codex, Gemini CLI, and Other Tools
Has anyone else ended up maintaining the same AI skill in multiple places? I use Claude Code, Codex, Cursor, Gemini CLI, Kimi, and several other AI tools. Over time, I accumulated a huge collection of skills and workflows. The annoying part wasn't creating them. It was keeping them synchronized. A skill would exist in one format for Claude Code, another for Cursor, another for Gemini, and so on. Eventually, I got tired of duplicating everything and built an open-source project called AI Omni Skills. The idea is to keep a single source of truth and generate the formats required by different AI tools. Now I update a skill once and regenerate whatever structure a specific tool expects. I'm curious: How are you managing skills today? Are you duplicating them across tools? What integrations would you want to see? Repo: https://github.com/moatazhamada/ai-omni-skills