Jcrist msgspec github. json as mjson import numpy as np mjson.

Jcrist msgspec github First experiments toward #196 May 16, 2022 · Thanks for the input, it works, kind of inconvenient for me that the baseclass is "private", but that is just how it is 🤷. A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - msgspec/README. Reload to refresh your session. _ipc. However the openHAB project uses an unconventional json-in-json approach (see payload field). int, str) subclasses treating them as their base classes if no extension is registered. json files and decodes them in order to build some objects and store them in the DB usi Aug 24, 2023 · Many of the builtin attrs validators are already supported in msgspec via other mechanisms, and will be both slower and duplicate work. 14. ABCMeta): member: int @abc. To reproduce, I did: [msgspec (main)]$ uv venv --python=python3. Aug 21, 2023 · Both issues could be addressed by introducing special methods (say __msgspec_decode__ / __msgspec_encode__) that if implemented on a non natively supported type, they define the (default) decoding/encoding logic for this particular type (i. This is a common issue in msgpack decoders, as the protocol prefixes array messages with their sizes. Struct, metaclass=abc. A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - Issues · jcrist/msgspec Mar 7, 2021 · As per original questions and discussion with `msgspec` author: - jcrist/msgspec#25 - jcrist/msgspec#140 this prototypes a new (but very naive) `msgspec. 0, private = True) The former I find a bit easier to read, but it adds some complications: The type annotations would have to be parsed at struct definition time, same as they would for ClassVar . For example, without array_like=True: class Position( msgspec. """ from __future__ import annotations msgspec. For this to happen though, we will need to resolve the above issue and tackle whatever other issues popup - if any. Jul 25, 2023 · Actually, the attrs integration made me start using msgspec, because I find cattrs unnecessarily complicated and using msgspec to convert sqlalchemy. Struct using msgspec. A recent experience has made me reconsider this. A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - Workflow runs · jcrist/msgspec Jan 19, 2024 · Description Problem: I want to be able to omit None fields from the json serialization, to make the serialization more compact. 0 · jcrist/msgspec Improve JSON encoding performance by up to 40% (#647). Many parsers preallocate buffers during parsing for efficiency. fields API does not support generic types if the type is specified as seen below: from typing import Generic, TypeVar from msgspec import Struct from msgspec. Struct, k Aug 12, 2023 · Description I often use aiohttp client and it requires Callable -> str Is there any support for encoding to string instead of bytes? Or should I use something like that? encoder = json. json import decode class Point(Struct, array_like=True): lng: float lat: float class Shape(Struct, Aug 30, 2024 · Saved searches Use saved searches to filter your results more quickly Description Sometimes you want/need to have the field names on msgspec. force_setattr to handle this task. This does violate the frozen guarantees, so should only be used when you know what you're doing. It's a real joy to use :) I have the following struct declaration, which is part of a more complex struct that I'm trying to decode: class ServingForExport(msgspec. I've added a msgspec converter in the next version so now we optionally depend on msgspec, which means I can't test on 3. Default factories aren't currently supported on Struct types, but adding support would be doable and (I think) fairly straightforward. structs. Struct instances implement several optimizations for reducing garbage collection (GC) pressure and decreasing memory usage. Since it's a literal with only one value, you probably want to make it an optional field, which further duplicates the information you need to write Aug 11, 2023 · Perhaps having the default value configured via an environment variable so users can set MSGSPEC_VALIDATE=sample or something to enable sampling instead of the default of complete checking. 12. Uses msgspec for the things it does best - JSON encoding and decoding. 13 (beta1). With regards to how to potentially support unions, I think I have personally been hitting my head against some reasonably sophisticated typing problems that I would not have a problem with using types. From the doc: "During decoding any timezone-aware datetimes will have their timezone normalized to UTC. In this case, it doesn't really matter how it is done, because the full pipeline is implemented in msgspec itself. If you know the schema in advance, you can specify the schema to the datamodel-code-generator CLI to generate a Struct (or multiple Structs) for you (as generated code). Making the tag a true field means it can be an argument to the struct constructor. Oct 27, 2024 · Really love mesgspec but without python 3. md at main · jcrist/msgspec Oct 1, 2024 · Description OS: macOS Sonoma 14. e. field. name ? In #711 we added support for Python 3. to avoid polluting the Struct method namespace, this should probably be a top-level method in the msgspec. " Example Given a struct like: class Wrapper(msgspec. Encoder() se May 5, 2023 · This was a known (but undocumented) deficiency, but was something I had been putting off fixing for now. These types are intentionally unsupported right now - see my comments in #248 for the reasoning behind this decision. if dec_hook/enc_hook are not given), something like this: Feb 2, 2022 · Dataclasses aren't natively supported, but could be handled with a custom enc_hook and dec_hook. Thanks for opening this issue. save and np. This definitely makes sense that if you're already using msgspec. Raw] , then copy over the fields that are not in my struct. 🎉 Support for a wide variety of Python types. . py at main · jcrist/msgspec Jun 1, 2024 · Howdy! I'm trying to test cattrs on Python 3. See example below: from typing import Literal from msgspec import Struct, json AorB = Literal["a", "b"] class Test(Struct): d: dic Oct 19, 2024 · Saved searches Use saved searches to filter your results more quickly Jan 31, 2024 · It doesn't like how msgspec produces the schema because there isn't a type field at the root level. From my perspective the only blockers to fully switch to msgspec. Encoder () numpy_array_decoder = msgspec. In many cases this isinstance check is sufficient! Feb 25, 2021 · This was raised on twitter, and may be important for some users. Estimates are hard, but I'd expect to get this in as part of the next release (~3-4 wee Description if msgspec. Aug 25, 2022 · import msgspec. toml at main · jcrist/msgspec May 30, 2021 · Can only really use an encoder currently since there is no streaming api in `msgspec` as of currently. Nov 23, 2022 · Since there is currently no way to override how natively supported types are serialized (enc_hook only allows to extend serialization to support non-natively supported types), this would mean a breaking change for us, which unfortunately means it's going to be very hard to adopt msgspec. frozen is True In a file: frozen. You switched accounts on another tab or window. convert, which was a later addition. Description It seems that nested array_like=True is not working as expected. MsgspecStream` type which can be swapped in for `msgspec` serialization transparently. 14 [msgspec (main A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - msgspec/LICENSE at main · jcrist/msgspec Jun 19, 2022 · I think supporting json schema would be critical for msgspec to be an alternative to Pydantic. If you want to see the old benchmark versions, click the "revisions" tab at the top. Dec 27, 2024 · A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - Release Version 0. 13 its not any longer an option . Mar 19, 2023 · Description I sometimes have JSON objects where the presence or absence of a field is semantically distinct from whether that field's value is null. json namespace instead. Dec 6, 2022 · Hi again, So I encountered an issue when trying to integrate msgspec into the internal of our libraries, namely - there is no way for me to easily access the field information on a struct. Row objects into our attrs domain models works very well. Dec 30, 2022 · When trying to encode subclasses of supported types, some will result in a TypeError, while others work as expected. py And the following command: python -m mypy . msgspec. 2. datetime objects can be encoded using a custom enc_hook, but there's no way to decode a Dec 2, 2022 · import msgspec import json def pretty_json (obj): """Pretty-print JSON, supporting all types that msgspec supports""" # This will be slower than a single `msgspec. BufferedReceieveStream` to handle buffering logic for the underlying transport. __struct_config__. I wrote this up: mostly to get an understanding of how msgspec's performance compares with that: of pydantic V2. 13 until you support it. com/jcrist/d62f450594164d284fbea957fd48b743?permalink_comment_id=4612531#gistcomment-4612531. It works the same as setattr , but will still work on a frozen struct. EncodeError: Only enums with int or str values are supported when attempting to encode anything else. 6. ArchLinux is one -> and our applications did stop working . Struct, frozen=True): class Child(Base): assert Child. A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - msgspec/pyproject. I assume, that for efficiency reasons, msgspec does validation on deserialization in C code, once the final data type objects are constructed in the chain. A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - Issues · jcrist/msgspec Nov 29, 2024 · Question @jcrist I know you are busy and thank you for everything you have done so far for all of us. A small msg-length-prefix framing is implemented as part of the type and we use `tricycle. Sep 7, 2023 · Saved searches Use saved searches to filter your results more quickly A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML - msgspec/msgspec/yaml. No argument there. 0a3. msgspec is a fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML. 14 venv3. Where does one put that schema so that FastAPI uses it as the schema for the endpoint's response body in the Description Currently msgspec only supports encoding Enum values that strings or integers, throwing msgspec. If your class is never Jul 13, 2023 · When I opened this, I think I was enthusiastic to play with constraints and didn't give it much thought. Dec 14, 2023 · In msgspec, validation is only applied for the back-transform. Recently I've migrated it from orjson to msgspec. 0)) Traceback (most recent call las Aug 19, 2024 · Description When setting both omit_defaults and array_like to True, defaults are not omitted. Apr 17, 2023 · I am currently thinking about using msgspec to use as a web socket deserializer for HABApp. Architecture Sep 3, 2024 · Description Hi, Would there be any interest in adding support for numpy datatypes? Currently, attempting to encode these fails: import msgspec. Using it for parsing other bits might have some perf benefit Oct 2, 2022 · Support for generic structs has been merged in #386 🚀 🚀. Structs are the repr, converter and validator functionalities of attrs. msgspec is a fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML. g. encode(np. like test. tar. Struct is faster than dataclasses, can msgspec also provide enums? There is fastenum which claims to be faster than regular python enum. lxwx nnahi tadp wpnwtbe zfeo bhuho wrj fixrovr ybzlsut itanbc ngan rjty iwo fdcsiv ljbpdn