test_attr_access_speed.py

from dataclasses import dataclass
from enum import Enum
from timeit import timeit
from typing import NamedTuple

from pydantic import BaseModel
from pydantic.dataclasses import dataclass as pydantic_dataclass


class Model(BaseModel):
    name: str


@pydantic_dataclass()
class PDDataClass:
    name: str


@dataclass()
class DataClass:
    name: str


class NT(NamedTuple):
    name: str


class EM(str, Enum):
    name: str = 'foo'


class Class:
    name: str = 'foo'


class Inst:
    name: str

    def __init__(self, name):
        self.name = name


m = Model(name='foo')
pd_dc = PDDataClass(name='foo')
dc = DataClass(name='foo')
nt = NT(name='foo')
inst = Inst(name='foo')

m_gl = {'m': m}
py_dc_gl = {'pd_dc': pd_dc}
dc_gl = {'dc': dc}
nt_gl = {'nt': nt}
em_gl = {'EM': EM}
cls_gl = {'cls': Class}
inst_gl = {'inst': inst}

num = 100000
print(
    'Testing pydantic.BaseModel:',
    timeit('m.name', globals=m_gl, number=num),

    'Testing pydantic.dataclasses.dataclass:',
    timeit('pd_dc.name', globals=py_dc_gl, number=num),

    'Testing dataclass:',
    timeit('dc.name', globals=dc_gl, number=num),

    'Testing NamedTuple:',
    timeit('nt.name', globals=nt_gl, number=num),

    'Testing Enum',
    timeit('EM.name', globals=em_gl, number=num),

    'Testing ordinal Class:',
    timeit('cls.name', globals=cls_gl, number=num),

    'Testing ordinal Class Instance',
    timeit('inst.name', globals=inst_gl, number=num),
    sep='\n'
)