Our great sponsors
| pyyaml | json5 | |
|---|---|---|
| 16 | 94 | |
| 2,425 | 6,278 | |
| 1.3% | 1.1% | |
| 3.9 | 0.0 | |
| 13 days ago | 5 months ago | |
| Python | JavaScript | |
| MIT License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
pyyaml
-
Cython 3.0 Released
PyYAML knew about the breakage since january 2022[0], and nothing really happened. After a year and a half with lots of alphas and betas, I don't think there is much cython could do, short of fixing PyYAML themselves.
[0]: https://github.com/yaml/pyyaml/issues/601
- Cython v3 release breaking PyYAML install well used in Python ecosystem
- Cython and pyyaml is breaking many builds
- I'm needing a hand, I do not understand some (seemingly) simple Python stuff.
-
is there any difference between using string.format() or an fstring?
They did finally change the default, in PyYAML 6, after many many bugs pointing out that their previous approach is broken (including one by yours truly), so the default is now safe.
-
Using Rust to not have to touch Yaml in k8s land
Note some parsers, most notably pyyaml are still at yaml 1.1, because 13 years is just not enough time to update it.
-
JSON is not a YAML subset
That part of the YAML 1.2 spec is in conflict with reality, though. The base of YAML 1.1 documents is large enough that a backwards-incompatible change to default behavior is for practical purposes impossible.
YAML 1.1 was released in 2005, and 1.2 in 2009 -- only four years later. But here we are, in 2022, and YAML 1.1 is still the default (in many cases, only) version supported. That's why the "Norway problem" persists -- it's not possible for the parser to know whether an un-versioned YAML document containing "a: no" should parse the same as {"a": false} or {"a": "no"}.
Python (PyYAML) doesn't support 1.2 yet: https://github.com/yaml/pyyaml/issues/116
Ruby (Psych) ditto -- I can't even find a tracking issue to enable it.
Go (go-yaml) is a mixture of YAML 1.1 and 1.2, depending on the author's preferences.
Also, as a rough guideline, you can't have a backwards-incompatible revision of a versioned spec declare that it's the new default version, because that breaks all existing users.
-
I accidentally used YAML.parse instead of JSON.parse, and it worked?
Many parsers either default to YAML pre-1.2 or do not even expose a YAML 1.2 option. PyYAML has no 1.2 option, for example. So unless Ansible is using something other than PyYAML...
Relevant (open) PR: https://github.com/yaml/pyyaml/pull/555
- AttributeError: '_io.TextIOWrapper' object has no attribute 'items'
-
Why doesn't yaml allow safe_dump for decimals?
Are you perhaps talking about decimal.Decimal? https://github.com/yaml/pyyaml/issues/255
json5
- JSON5 – JSON for Humans
- Why the fuck are we templating YAML? (2019)
-
I pre-released my project "json-responder" written in Rust
JSON5 support
-
topoconfig: enhancing config declarations with graphs
Meanwhile, formats have been evolving (JSON5, YAML), config entry points are constantly changing. These fluctuations, fortunately, were covered by tools like the cosmiconfig.
-
That's a Lot of YAML
I think JSON5 is fairly close to this: https://json5.org
I reckon the only thing it's missing to be truly accessible to non-techies is that string values still need to be quoted, i.e. you can't have:
key: this is my value
(I'm definitely not saying it would be a good idea to allow quotes to be dropped, just that that's the only potential stumbling block I see for non-techies.)
-
XML is better than YAML
I believe that's JSON5.
https://github.com/json5/json5
It's my preferred configuration file format, it fixes all the problems I have with JSON (trailing commas, comments) without turning it into a mess full of gotchas like YAML.
- Fx – Terminal JSON Viewer
- What Is Wrong with TOML?
-
🚀 'GET' API in API Maker
JSON 5 support
-
TySON: a native go library that lets you use TypeScript as an embedded configuration language without depending on Node or V8
I would like to see mention of JSON5 which is 11 years its elder. For comments in JSON, JSON5 is a good starting point.
What are some alternatives?
confuse - painless YAML config files for Python
Json.NET - Json.NET is a popular high-performance JSON framework for .NET
strictyaml - Type-safe YAML parser and validator.
hjson-js - Hjson for JavaScript
yamllint - A linter for YAML files.
jq - Command-line JSON processor [Moved to: https://github.com/jqlang/jq]
jsonnet - Jsonnet - The data templating language
toml - Tom's Obvious, Minimal Language
marshmallow - A lightweight library for converting complex objects to and from simple Python datatypes.
python-strict-yaml-parsing - Examples of strict yaml parsing in python
sublime-hjson - Hjson support for Sublime Text