Most Python developers can parse a CSV, write a decorator and pip install their way out of a problem.
Python experts know what happens when the op...
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@akhourianmolkumar & @technogamerz I came to the latest post...
yeah okay I'm online from now.
I will be online during breaks 😑
okay..
👍
whenever you get a break say something here.
To be honest, I’m practically a pre-beginner Python coder. Around 2019, I was very keen on becoming a Python developer to complement my existing skills as a React developer. However, the company I was working for at the time didn't look favorably upon me exploring solutions that deviated from their standard tech stack. Consequently, the only thing I managed to achieve was connecting JS and Python via WebSockets, which allowed me to utilize an OpenAI translation function from within a JS application.
Nowadays, though, it doesn't really matter which programming language I use or what I’m building. I’ve started developing a 3D engine, and I was surprised to find that—alongside TS and Hexaw—it actually includes some Python code as well.
Thanks for sharing thiss, Peter bro! And “pre-beginner” undersells it. bridging JS and Python over WebSockets to call a translation function is real integration work, and it’s the kind of thing that teaches you how systems talk to each other.
I agree with your point about language not mattering much. mostt of the tests in this post are really about the OS, not Python: a hotkey Windows reserves, an audio device that goes silent, a pointer that gets truncated. you’d hit the same walls in C#, Rust or JS. Python just made it easy to reach them quicklyyy.
A 3D engine with TS, Hexaw and a Bit of Python sounds really interestiing. What does the Python part do in it...? tooling, asset processing, something else?
thanks for commenting and sharing this again... ;)
Good question, just for loading blender file to AI.
github.com/Pengeszikra/3Draft
... under heavy development.
.... under heavy development 😆☠️
thanks for sharing this.
The Win+Shift+S example shows why testing real operating-system interactions matters so much. A feature can appear straightforward in isolation but behave very differently when Windows already owns the shortcut or another process is listening for the same event. I'd be interested in seeing how you handle shortcut conflicts and cleanup when the application exits unexpectedly. Those lifecycle details often separate a working prototype from a dependable desktop tool.
Great write-up! I especially liked the audio synchronization issue and the reminder that a successful API call doesn’t always mean the expected result actually happened. These are the kinds of lessons that come from real debugging experience. Thanks for sharing both the challenges and the solutions!
Thanks broo. really glad those two landed the audio one surprised me most, because nothing crashes.... the recording just looks fine until the first long silence, and then the sound slowly slides out of sync.. Bugs thatt fail quietly are the hardest to catch.
the “verify the world changed” idea came from the same Place. a function returning success told me nothing until i checked that the file was really gone.
Have you hit a bug like that bro??, where the API said yes but reality said no? also bro now I've created a series: Developer or Expert I like the series concept of xulingfeng so from him I took inspiration to create a series.
Absolutely, bro! I’ve encountered similar situations in infrastructure and automation, where an API reports success but the actual system state tells a different story. That’s why I’ve learned to trust verification more than return codes. Silent failures are especially tricky because everything looks fine until something unexpected happens. 😄
I also like the Developer or Expert series concept. Looking forward to the next one!
yeah next post soon.... ;)
bro see this:
The obsession with wrapping remote APIs into multi-layered agent abstractions is creating massive hidden latency and failure cascades in production.
If you profile real-world workloads, bare-metal local inference (via direct C++ / llama.cpp or vLLM bindings) consistently beats fragile cloud wrappers on both predictability and cost. Tooling should eliminate abstraction penalties, not compound them.
Hands down Test 1 (Low-level keyboard hooks and message pump thread affinity).
When building automated agents that interact with Windows desktop environments via ctypes and native Win32, the hidden trap is WH_KEYBOARD_LL running on a secondary thread that doesn't maintain a dedicated, unblocked GetMessageW / DispatchMessageW pump.
If any synchronous I/O or LLM parsing blocks that thread for more than LowLevelHooksTimeout (typically 200–1000ms in Windows registry), the OS silently unhooks your callback without throwing an exception! You think the hook is still alive, but Windows just quietly stopped delivering WM_KEYDOWN.
Moving the hook callback to an isolated worker thread with a dedicated Win32 message loop while buffering events into an asynchronous queue is the only way we achieved 24/7 rock-solid stability in production.
Also, massive kudos for using SHFileOperationW with FO_DELETE + FOF_ALLOWUNDO instead of raw os.remove(). That single detail separates developers from engineers who build software for humans.