Dataclass Dict Convert

This library converts between python dataclasses and dicts (and json).

It was created because when using the dataclasses-json library for my use case, I ran into limitations and performance issues. (There's also typed-json-dataclass but I haven't evaluated that library.)

Since creating this library, I've discovered Pydentic, which is a much more professional library, that in 99% of cases will be much more suitable than this library. So I strongly recommend using Pydentic. If you use dataclass-dict-convert, beware that it is poorly maintained, not very well documented, may contain some bugs, and has some strange edge cases where it doesn't work.

dataclass-dict-convert supports lists, optionals, dicts, enums, nested dataclasses, etc. It handles dates using RFC3339 (and enforces timezones and timezone aware datetime).

Example:

from dataclasses import dataclass
from stringcase import camelcase
from typing import Optional, List

from dataclass_dict_convert import dataclass_dict_convert


@dataclass_dict_convert(dict_letter_case=camelcase)
@dataclass(frozen=True)
class TestB:
    an_int: int
    a_str: str
    a_float: float
    a_bool: bool


@dataclass_dict_convert(dict_letter_case=camelcase)
@dataclass(frozen=True)
class Test:
    nestedClass: TestB
    nestedInOpt: Optional[TestB]
    nestedInList: List[TestB]


the_instanceB1 = TestB(1, 'foo', 0.1, True)
the_instanceB2 = TestB(2, 'bar', 0.2, False)
the_instanceB3 = TestB(3, 'baz', 0.3, True)
the_instanceB4 = TestB(4, 'huh', 0.4, False)
the_instance = Test(the_instanceB1, the_instanceB2, [the_instanceB3, the_instanceB4])
the_dict = {
    'nestedClass': {'anInt': 1, 'aStr': 'foo', 'aFloat': 0.1, 'aBool': True, },
    'nestedInOpt': {'anInt': 2, 'aStr': 'bar', 'aFloat': 0.2, 'aBool': False, },
    'nestedInList': [
        {'anInt': 3, 'aStr': 'baz', 'aFloat': 0.3, 'aBool': True, },
        {'anInt': 4, 'aStr': 'huh', 'aFloat': 0.4, 'aBool': False, },
    ],
}

expected = the_dict
actual = the_instance.to_dict()
assert actual == expected

expected = the_instance
actual = Test.from_dict(the_dict)
assert actual == expected

The library also includes:

RFC3339 tools (the default format for converting datetime to string),
dataclass type checking tools
dataclass copy method generator
dataclass multiline repr (replace auto generated repr for dataclasses by a multiline version)

Links:

Release files for dataclass-dict-convert 1.7.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for dataclass-dict-convert 1.7.1
File	Size	Uploaded
dataclass-dict-convert-1.7.1.tar.gz	15.0 kB	Sep 23, 2022	Details

Built distribution (wheel)

Table of built distributions (wheels) for dataclass-dict-convert 1.7.1
File	Interpreter	ABI	Platform	Reset
dataclass_dict_convert-1.7.1-py3-none-any.whl 15.5 kB Sep 23, 2022	Python 3	none	any	Details

Total release size: 30.5 kB

Release files / dataclass-dict-convert-1.7.1.tar.gz

Download URL	dataclass-dict-convert-1.7.1.tar.gz
Size	15.0 kB
Tags	Source
SHA-256 checksum How to use checksums	`7b9a3846e5fe39565437d23fdb1c3c147476c75295188980bff53b6d1e9e6d47`
BLAKE2b-256 checksum How to use checksums	`5df05e9c066557c40813be27106aaa51cc72050cc61dde168b9b4a4525eb82cd`
Upload date	Sep 23, 2022
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/3.7.1 importlib_metadata/4.10.0 pkginfo/1.8.2 requests/2.27.0 requests-toolbelt/0.9.1 tqdm/4.62.3 CPython/3.10.6`

Release files / dataclass_dict_convert-1.7.1-py3-none-any.whl

Download URL	dataclass_dict_convert-1.7.1-py3-none-any.whl
Size	15.5 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`d4c59884722e4bb6031c7c2c3d85bb4f656d46c90929a68ed44c700f2f6eb435`
BLAKE2b-256 checksum How to use checksums	`8e837a741919cf7e99d53a9c8b1146c823a6ce0b884e01acd7603e10382ea9b1`
Upload date	Sep 23, 2022
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/3.7.1 importlib_metadata/4.10.0 pkginfo/1.8.2 requests/2.27.0 requests-toolbelt/0.9.1 tqdm/4.62.3 CPython/3.10.6`