gidgid’s gists

gidgid / copy_doesnt_coerce.py

Last active November 20, 2020 13:37

Pydantic copy doesnt perform type coercion

	from pydantic import BaseModel


	class Pizza(BaseModel):
	toppings_count: int
	size: str


	def test_copy_with_update_doesnt_perform_conversion():
	pizza = Pizza(toppings_count='4', size='XL') # 1

gidgid / pydantic_field_aliases_example.py

Created October 4, 2020 08:52

Using Pydantic field aliases to bridge inconsistent naming

	import pytest
	from pydantic import BaseModel, Field, ValidationError


	class Item(BaseModel):
	item_id: str
	is_available: bool = Field(alias='isAvailable') # 1


	def test_field_aliasing_bridges_inconsistant_conventions():

gidgid / hide_underscore_prefixed_fields_example.py

Created October 4, 2020 08:47

Pydantic hides fields starting with underscore

	from pydantic import BaseModel


	class Item(BaseModel):
	_id: str # 1
	is_available: bool


	def test_pydantic_hides_names_with_preceding_underscores():
	item = Item(_id='test-item-id', is_available=True) # 1

gidgid / camelcase_naming_example.py

Last active October 4, 2020 08:44

Camelcase names are weird in Python

	from pydantic import BaseModel


	class Item(BaseModel):
	id: str # 1
	isAvailable: bool # 2


	def test_does_it_look_pythonic_to_you():
	item = Item(id='test-item-id', isAvailable=True) # 3

gidgid / validate_http_url.py

Last active October 1, 2020 19:43

Using HttpUrl with validate_arguments

	from typing import Optional
	from pydantic import validate_arguments, HttpUrl, PositiveInt

	@validate_arguments
	def better_get_payload(
	url: HttpUrl, # 1
	retries: PositiveInt
	) -> Optional[dict]:
	# send the actual request - no need to verify URL # 2
	return {}

gidgid / validate_arguments.py

Last active June 3, 2023 14:03

Leveraging validate_arguments to perform validations

	import pytest
	from typing import Optional
	from pydantic import validate_arguments, PositiveInt, ValidationError


	@validate_arguments # 1
	def validated_get_payload(url: str, retries: PositiveInt) -> Optional[dict]:
	if url.startswith("http"):
	# send the actual request and return the payload if valid response
	return {}

gidgid / no_validation_funcs.py

Created October 1, 2020 19:31

Regular Python functions with no validation

	import pytest
	from typing import Optional
	from pydantic import PositiveInt, ValidationError


	def get_payload(url: str, retries: PositiveInt) -> Optional[dict]: # 1
	if url.startswith("http"):
	# send the actual request and return the payload if valid response
	return {}
	return None

gidgid / root_with_literals.py

Last active September 30, 2020 19:24

Reading settings models according to the environment

	import os
	import pytest
	from pydantic import BaseSettings, HttpUrl, ValidationError
	from typing import Union
	from typing_extensions import Literal


	class LocalContext(BaseSettings): # 1
	env: Literal['local'] # 1
	echo_server_url: str

gidgid / settings_with_pydantic.py

Last active November 20, 2020 14:48

settings with pydantic

	import os
	import pytest
	from pydantic import BaseSettings, HttpUrl, ValidationError


	class Config(BaseSettings): # 1, 2
	auth_url: HttpUrl
	db_name: str
	max_retries: int

gidgid / settings_with_pydantic.py

Last active November 20, 2020 14:42

Reading settings with Pydantic

	import os
	import pytest
	from pydantic import BaseSettings, HttpUrl, ValidationError


	class Config(BaseSettings): # 1, 2
	auth_url: HttpUrl
	db_name: str
	max_retries: int

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