Static Typing Fails on Nested SQLModel

[martinralfreindl]

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Example Code

##################################### REQUIREMENTS.TXT #######################
# For running SQL queries
sqlmodel==0.0.14


############################ .VSCODE SETTINGS.JSON############################
{
    "python.defaultInterpreterPath": "${workspaceFolder}/.venv/bin/python3.11",
    "python.analysis.typeCheckingMode": "strict",
    "python.analysis.diagnosticMode": "workspace",
}


#################################### MAIN.PY #################################
from sqlmodel import SQLModel 


class User(SQLModel):
    """Gives some basic information about the user."""

    user_id: int
    
    
class Profile(object):
    """Contains social information about the user."""

    name: str


class Settings(SQLModel):
    """Contains the user's settings."""

    user: User
    profile: Profile
    use_dark_mode: bool


Settings(
    user=None, # This line does not raise static errors with pylance
    profile=None, # This line does raise static errors with pylance
    use_dark_mode=True, 
)

Description

SITUATION:
I recently updated to SQLModel 0.0.14 and have since started experiencing static typing issues with SQLModel.

COMPLICATION
Whenever I nest two SQLModels, static typing fails to execute correctly.

The example above is one instance of this behavior:

• User inherits from SQLModel
• Profile is a regular Python class (inheriting from object)
• Settings contains nested User and Profile models, both of which are not optional
• When I pass None to the the user and profile properties in the Settings constructor, both of them should throw static errors (None is not an acceptable subtype of User and Profile after all), but for some reason the user property accepts None without issues.

QUESTION
The code above minimally reproduces the faulty behavior on my machine. What am I doing wrong here? Is this a bug in SQLModel or my setup?

Operating System

macOS

Operating System Details

I'm running all of this in VSCode

SQLModel Version

0.0.14

Python Version

3.11.6

Additional Context

No response