Hacker News: epogrebnyak

New comment by epogrebnyak in "Three Inverse Laws of AI"

epogrebnyak — Wed, 06 May 2026 06:34:45 +0000

Does this make any problem that two of the three laws are formulated as negation - not to do something? If not antropomorphising then what, without 'not'? I like third law formation better because there is no 'not'.

New comment by epogrebnyak in "Monad Tutorials Timeline"

epogrebnyak — Fri, 01 May 2026 16:19:53 +0000

Some tutorials seem to predate introduction of monad itself, it seemed... )

New comment by epogrebnyak in "Show HN: Hacker News archive (47M+ items, 11.6GB) as Parquet, updated every 5m"

epogrebnyak — Wed, 18 Mar 2026 19:49:07 +0000

Ahhh I get it the moment I asked, there are usually no votes on comments

New comment by epogrebnyak in "Show HN: Hacker News archive (47M+ items, 11.6GB) as Parquet, updated every 5m"

epogrebnyak — Wed, 18 Mar 2026 19:47:55 +0000

Wonder why median votes count is 0, seems every post is getting at least a few votes - maybe this was not the case in the past

New comment by epogrebnyak in "Ask HN: What Are You Working On? (March 2026)"

epogrebnyak — Mon, 09 Mar 2026 14:37:20 +0000

I just released an update to a command line utility that inspects PATH environment variable. It's in Python, switched to uv from poetry, added new color scheme with rich and made some change to the logic how symlinks are processed.

https://github.com/epogrebnyak/justpath

Also wrote a small clone in Rust, just to try the language: https://github.com/epogrebnyak/justpath.rs

So far Python is easier for me, but I transferred some code organisation ideas from Rust to Python.

Extra benefit of Rust is that you can get a runnable binary, in Python, well there is a lot you are installing even for a simple utility.

Someone made a PR on brew installer for the Python utility, but it seems fully claude code and I'm not sure it is the best way to package brew.

New comment by epogrebnyak in "Minimal Accounting Library in Python"

epogrebnyak — Sat, 26 Oct 2024 18:17:55 +0000

The core of the library in under 350 lines of code, and it enables to create a chart of accounts, open a ledger, and post entries to ledger, as well as to close ledger properly at accounting period end.

The resulting reports are income statment and balance sheet. Trial balance can be shown at any time.

Best effort made to document library usage in an end-to-end example in README - needs just Chart, Book and Entry classes to perform. List of simplifications and assumptions used also in README.

Minimal Accounting Library in Python

epogrebnyak — Sat, 26 Oct 2024 18:17:55 +0000

Article URL: https://github.com/epogrebnyak/abacus-minimal

Comments URL: https://news.ycombinator.com/item?id=41956621

Points: 2

# Comments: 1

New comment by epogrebnyak in "MLMY: Machine Learning My Way – A List of Topics"

epogrebnyak — Fri, 29 Mar 2024 19:31:57 +0000

I was reviewing my previous work - a website called Econometrics Navigator that provides some links to open source textbooks and blogs and felt I wanted to put together a list of topics in econometrics, machine learning and deep learning in a perspective. Can think of it as a review checklist or perhaps a (self) study guide. So far nothing beyond the titles, but will appreciate the comment on structure, additions or changes.

MLMY: Machine Learning My Way – A List of Topics

epogrebnyak — Fri, 29 Mar 2024 19:31:57 +0000

Article URL: https://docs.google.com/document/d/e/2PACX-1vT9ZkQJDDimZuPgBb7_hUJ40lm8LhqzL45HwIcYRYHw0AQkwA7pcqg0AIE7Gwf3QpAnZ34-BrFrWovO/pub

Comments URL: https://news.ycombinator.com/item?id=39868062

Points: 5

# Comments: 1

New comment by epogrebnyak in "Show HN: Justpath – a simple utility to explore the PATH environment variable"

epogrebnyak — Tue, 27 Feb 2024 20:43:53 +0000

Thanks for explaining, looks very clever. Is this syntax part of bash?

New comment by epogrebnyak in "Show HN: Justpath – a simple utility to explore the PATH environment variable"

epogrebnyak — Tue, 27 Feb 2024 10:09:02 +0000

Actually funny enough does not do that - cool possible feature

Should it be `justpath --contains .`?

Opened issue here: https://github.com/epogrebnyak/justpath/issues/10

New comment by epogrebnyak in "Show HN: Justpath – a simple utility to explore the PATH environment variable"

epogrebnyak — Mon, 26 Feb 2024 19:14:05 +0000

How does (N[-1]) get resolved?

New comment by epogrebnyak in "Show HN: Justpath – a simple utility to explore the PATH environment variable"

epogrebnyak — Mon, 26 Feb 2024 19:09:54 +0000

For me the use case was trying to understand what directories should I clean from path and if there where duplicates. Just something to help understand if my PATH on Windows was repetitive or not.

New comment by epogrebnyak in "Show HN: Justpath – a simple utility to explore the PATH environment variable"

epogrebnyak — Mon, 26 Feb 2024 19:07:35 +0000

Thanks! Indeed an itch that was both on Linux and Windows - so a tool that I could use in either environment

Show HN: Justpath – a simple utility to explore the PATH environment variable

epogrebnyak — Sat, 24 Feb 2024 17:32:29 +0000

Article URL: https://github.com/epogrebnyak/justpath

Comments URL: https://news.ycombinator.com/item?id=39493363

Points: 76

# Comments: 26