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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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What's best library for swagger + flask?
6 projects | reddit.com/r/Python | 25 Sep 2022
I also came across things like Marsmallow and Blueprints, but don't know what these are, still reading about this as I write.
pydantic VS marshmallow - a user suggested alternative
2 projects | 21 Sep 2022
Pydantic is a data validation library, marshmallow is a data validation library. None of the other libraries in the list of pydantic alternatives is a data validation library.
Yet another object serialization framework!
2 projects | reddit.com/r/Python | 5 Sep 2022
I have been working on a package that is very similar in concept to marshmallow (https://marshmallow.readthedocs.io), but which adds a versioning mechanism to track changes in object structure across time, allowing you to migrate objects between different versions.
Should I use SQLAlchemy for a side project?
2 projects | reddit.com/r/Python | 15 Jun 2022
You might be surprised how much I agree - I recently opened an issue there hoping to discuss something like this (still awaiting response). https://github.com/marshmallow-code/marshmallow/issues/2000
The Pocket Guide To API Request Validation You Wish You Had Earlier
2 projects | dev.to | 6 Jan 2022
Project Althaia - looking for performance/accuracy feedback on my shallow fork of marshmallow
2 projects | reddit.com/r/Python | 3 Jan 2022
I created a shallow fork of everyone's favourite marshmallow, to work around some performance issues while dumping data. The performance gain I measured is around 45%, but since it's a bad idea to rely on one's own testing, I was hoping that there are some folks here who use marshmallow in their projects, and who would be willing to try it out. Doubly so if your project has some unit tests in it, to confirm that nothing is broken due to my patches.
Strict YAML deserialization in Python with marshmallow
3 projects | dev.to | 27 Jan 2021
I found a recommendation to use marshmallow to parse dict generated from JSON object. I decided that these cases are the same as mine only uses JSON instead of YAML. And so I tried to use class_schema generator for dataclass schema:
apischema v0.17 - I've developed the fastest typed JSON (de)serialization library, and you can also build your GraphQL schema with it
8 projects | reddit.com/r/Python | 18 Jan 2022
This month, I've released version 0.17, and it's now blazing fast; there is in fact no more comparison with Pydantic, which more than 5x slower (up to 30x in serialization). It's also faster than alternatives like mashumaro or cattrs. (See the quick benchmark result in documentation, and the code)
I use attrs instead of pydantic
5 projects | news.ycombinator.com | 26 Aug 2021
Cattrs has some problems with generics  . Dacite and marshmallow-dataclasses don't support generics well either, with some issues around Union types.
They do work well for simple python types but what I'd like to see is guarantee that the serialisation operation is completely reversible and if not raise warning/exception.
What are some alternatives?
Fast JSON schema for Python - Fast JSON schema validator for Python.
serpy - ridiculously fast object serialization
ultrajson - Ultra fast JSON decoder and encoder written in C with Python bindings
WTForms - A flexible forms validation and rendering library for Python.
pydantic - Data parsing and validation using Python type hints
jsonschema - JSON Schema validation library
Trafaret - Ultimate transformation library that supports validation, contexts and aiohttp.
jsons - 🐍 A Python lib for (de)serializing Python objects to/from JSON
lupin is a Python JSON object mapper - Python document object mapper (load python object from JSON and vice-versa)
hjson-py - Hjson for Python