Brtdku

I try to check my code using special configuration
.pre-commit-config.yaml
repos:

• 
  

  repo: https://github.com/ambv/black
  rev: 'stable'
  hooks:

  
  
  
  
  
  • id: black
    args: [--py36, --line-length=120, src/webhook_app]
    python-version: python3.6
  
  
  
  


• 
  

  repo: https://github.com/pre-commit/mirrors-mypy
  rev: v0.630
  hooks:

  
  
  
  
  
  • id: mypy
    args: [--no-strict-optional, --ignore-missing-imports]
  
  
  
  


• 
  

  repo: https://github.com/pre-commit/pygrep-hooks
  rev: v1.1.0
  hooks:

  
  
  
  
  
  • id: python-use-type-annotations
  
  
  
  


• 
  

  repo: https://github.com/pre-commit/mirrors-pylint
  rev: v1.9.1
  hooks:

  
  
  
  
  
  • id: pylint
  
  
  
  

      args: [
  
        --max-line-length=120,
  
        --disable=design,
  
        --disable=missing-docstring,
  
        --disable=bad-continuation,
  
        --disable=max-module-lines,
  
        --disable=useless-super-delegation,
  
        --disable=import-error,
  
        --disable=logging-fstring-interpolation,
  
        --disable=invalid-name,
  
        --disable=duplicate-code
  
      ]
  
      # exclude tests folder and manage.py to be checked
  
      exclude: 'tests|manage.py'```
  
  

  
  


• 
  

  repo: https://github.com/pre-commit/pre-commit-hooks
  rev: v1.4.0
  hooks:

  
  
  
  
  
  • id: flake8
    args: ['--max-line-length=120']
  
  
  • id: trailing-whitespace
  
  
  
  

I start my checking
my code

import warnings

from contextlib import contextmanager

from enum import Enum



from sqlalchemy import create_engine

from sqlalchemy import exc

from sqlalchemy.ext.declarative import DeferredReflection, declarative_base

from sqlalchemy.inspection import inspect

from sqlalchemy.orm import scoped_session, sessionmaker



import structlog





logger = structlog.get_logger(__name__)





class Base(DeferredReflection, declarative_base()): # type: ignore



    """ Abstract base class for construction of mappings

    based on a deferred reflection step.

    All classes inherited from it will be reflected by the time

    of calling DeferredReflection.prepare()""" 



    __abstract__ = True



    def __repr__(self):

        inspector = inspect(self.__table__)

        return "{}({})".format(

            self.__class__.__name__,

            ", ".join("%s=%s" % (column.name, self.__dict__[column.name]) for column in inspector.columns),

        )

I got an error from hookid: python-use-type-annotations

src/webhook_app/models.py:17:class Base(DeferredReflection, declarative_base()):  # type: ignore

When I remove # type: ignore python-use-type-annotations says that everything is ok but mypy sends me an error Invalid base class.

Could you please help me?

I think you're not using declarative_base() properly.

Base = declarative_base(cls=DeferredReflection)



class MyClass(Base):

    ...

or

Base = declarative_base()



class MyClass(DeferredReflection, Base):

    ...