Pydantic issue 3764 - Basemodel.dict not converting std python dataclasses children

This repo contains example code for the issue pydantic#3764

pre-requisites

• python
• pyenv
• pipenv
• make

Installing

pipenv install -d

Running

make run_pydantic_

Results

pydantic 1.9.0

make run_pydantic_1.9.0 pipenv install pydantic==1.9.0 >/dev/null 2>&1 && pipenv run python main.py

Root type	Child type	method	output	returned expected output?
BaseModel	BaseModel	r.dict()	{'s': 'test', 'c': {'n': 2}}	Yes
BaseModel	Pydantic dataclass	r.dict()	{'s': 'test', 'c': _Child(n=2)}	No
BaseModel	dataclass	r.dict()	{'s': 'test', 'c': _Pydantic__Child_94278668987376(n=2)}	No
Pydantic dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
Pydantic dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
Pydantic dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes

pydantic 1.9.2

make run_pydantic_1.9.2 pipenv install pydantic==1.9.2 >/dev/null 2>&1 && pipenv run python main.py

Root type	Child type	method	output	returned expected output?
BaseModel	BaseModel	r.dict()	{'s': 'test', 'c': {'n': 2}}	Yes
BaseModel	Pydantic dataclass	r.dict()	{'s': 'test', 'c': _Child(n=2)}	No
BaseModel	dataclass	r.dict()	{'s': 'test', 'c': _Pydantic__Child_94345520777104(n=2)}	No
Pydantic dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
Pydantic dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
Pydantic dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes

pydantic 1.10.0

make run_pydantic_1.10.0 pipenv install pydantic==1.10.0 >/dev/null 2>&1 && pipenv run python main.py

Root type	Child type	method	output	returned expected output?
BaseModel	BaseModel	r.dict()	{'s': 'test', 'c': {'n': 2}}	Yes
BaseModel	Pydantic dataclass	r.dict()	{'s': 'test', 'c': _Child(n=2)}	No
BaseModel	dataclass	r.dict()	{'s': 'test', 'c': _Child(n=2)}	No
Pydantic dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
Pydantic dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
Pydantic dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes

pydantic 1.10.4

make run_pydantic_1.10.4 pipenv install pydantic==1.10.0 >/dev/null 2>&1 && pipenv run python main.py

Root type	Child type	method	output	returned expected output?
BaseModel	BaseModel	r.dict()	{'s': 'test', 'c': {'n': 2}}	Yes
BaseModel	Pydantic dataclass	r.dict()	{'s': 'test', 'c': _Child(n=2)}	No
BaseModel	dataclass	r.dict()	{'s': 'test', 'c': _Child(n=2)}	No
Pydantic dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
Pydantic dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
Pydantic dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	BaseModel	asdict(r)	{'s': 'test', 'c': _Child(n=2)}	No
dataclass	Pydantic dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes
dataclass	dataclass	asdict(r)	{'s': 'test', 'c': {'n': 2}}	Yes