SPspyc·Dec 13, 2025
The current implementation breaks semantics of functions with tail recursion from within loops: https://github.com/raaidrt/tacopy/issues/1
In Show HN: Tacopy – Tail Call Optimization for Pythonraaidrt
tacopy
Python2025–2025
raaidrt / tacopy
tacopy
Tail Call Optimizations in Python
5Distinct people
5Mentions
0Explicit recommenders
80GitHub stars
What to know before exploring
What it is
Tail Call Optimizations in Python
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by day5 dated mentions
Observed mentions: 2025-11-30 06:18:57 UTC to 2025-12-13 15:38:16 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Nov 30 | 2025-11-30 00:00:00 UTC | 2025-12-01 00:00:00 UTC | 1 | 1 | 0 |
| Dec 1 | 2025-12-01 00:00:00 UTC | 2025-12-02 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2 | 2025-12-02 00:00:00 UTC | 2025-12-03 00:00:00 UTC | 0 | 0 | 0 |
| Dec 3 | 2025-12-03 00:00:00 UTC | 2025-12-04 00:00:00 UTC | 0 | 0 | 0 |
| Dec 4 | 2025-12-04 00:00:00 UTC | 2025-12-05 00:00:00 UTC | 0 | 0 | 0 |
| Dec 5 | 2025-12-05 00:00:00 UTC | 2025-12-06 00:00:00 UTC | 3 | 0 | 3 |
| Dec 6 | 2025-12-06 00:00:00 UTC | 2025-12-07 00:00:00 UTC | 0 | 0 | 0 |
| Dec 7 | 2025-12-07 00:00:00 UTC | 2025-12-08 00:00:00 UTC | 0 | 0 | 0 |
| Dec 8 | 2025-12-08 00:00:00 UTC | 2025-12-09 00:00:00 UTC | 0 | 0 | 0 |
| Dec 9 | 2025-12-09 00:00:00 UTC | 2025-12-10 00:00:00 UTC | 0 | 0 | 0 |
| Dec 10 | 2025-12-10 00:00:00 UTC | 2025-12-11 00:00:00 UTC | 0 | 0 | 0 |
| Dec 11 | 2025-12-11 00:00:00 UTC | 2025-12-12 00:00:00 UTC | 0 | 0 | 0 |
| Dec 12 | 2025-12-12 00:00:00 UTC | 2025-12-13 00:00:00 UTC | 0 | 0 | 0 |
| Dec 13 | 2025-12-13 00:00:00 UTC | 2025-12-14 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
5 sourceswhat is this, why is 95% of the file useless comments: https://github.com/raaidrt/tacopy/blob/main/src/tacopy/unpar...
you're calling a built in function, why make obfuscate this in an "llm way"
In Show HN: Tacopy – Tail Call Optimization for PythonFound out
> Nested function definitions with @tacopy decorators are not supported. Functions decorated with @tacopy must be defined at module level. This constraint exists because inspect.getsource() on nested functions returns the source of the entire enclosing function, making it impossible to reliably extract and transform just the nested function's code. The decorator detects nested functions by checking for '<locals>' in the function's __qualname__ attribute and raises a clear error message instructing users to extract the function to module level.
https://github.com/raaidrt/tacopy/blob/8f5db70da2b7bbfafc41b...
In Show HN: Tacopy – Tail Call Optimization for PythonThat is an ambitious idea, and I applaud anyone who attempts such heights even if it turned out to be impractical.
OP's approach is surprisingly straight forward, only a few hundred lines.
https://github.com/raaidrt/tacopy/blob/main/src/tacopy/trans...
In Show HN: Tacopy – Tail Call Optimization for PythonShow HN: Tacopy – Tail Call Optimization for Python
95 points · Open discussion