WSwslh·Sep 27, 2024Submission
Parso is a Python parser that supports error recovery and round-trip parsing
14 points · Open discussiondavidhalter
parso
Python2019–2024
davidhalter / parso
parso
A Python Parser
2Distinct people
2Mentions
0Explicit recommenders
680GitHub stars
What to know before exploring
What it is
A Python Parser
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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Also in these discussions
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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 year2 dated mentions
Observed mentions: 2019-05-03 03:24:56 UTC to 2024-09-27 22:01:39 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 |
|---|---|---|---|---|---|
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
2 sourcesOne of LFortran authors here. Yes, we already have an open issue for exactly this: https://gitlab.com/lfortran/lfortran/issues/42. As you can read there, it's actually not that easy as I first thought. But I think it's very much worth pursuing.
For example, Python's AST is not round-trippable, and that forces people to write alternative parsers such as Parso (https://github.com/davidhalter/parso).
ANTLR should allow to parse all the white space. But the issue is how to represent it in the AST, see the issue for more details. One could have an AST and a parser just for this round-trippable application, but that defeats the purpose. The goal should be to have this part of the compiler so that one can trust that it parses things correctly.
Right now I am concentrating my efforts to finish gfortran compatibility (see the roadmap at https://lf
Read the rest
ortran.org) and to get first users. Once we get further along, we will tackle this problem. I am hopeful there might be a way to do this.