Why I cannot create standalone object of HttpURL in pydantic?-CodePudding

from pydantic import BaseModel, Field, HttpUrl
from typing import Optional

class TestClass(BaseModel):
    url:Optional[HttpUrl] = None

Creating object TestClass with url="https://www.test.com" works.

Here the imported HttpUrl or BaseModel are class. When I try to create httpurl object standalone it gives typeerror e.g. below.

from pydantic import HttpUrl

myurl = HttpUrl("https://www.test.com")

Why it cannot be used to convert string to http object like above. It results errors like: need keyword-only args if that is provided then 2 positional provided required 3

CodePudding user response：

pydantic types are valid only when used as a class variables inside BaseModel derivatives.

Under the hood, pydantic fires validate method of AnyUrl class which is inconvenient for external usage.

Maybe urllib library will come handy for you?

from urllib.parse import urlparse
myurl = urlparse("https://www.test.com")