type hints

Author: ElLorans

examples/__init__.py

@@ -16,10 +16,9 @@
 from flask_admin.theme import Bootstrap4Theme
 from flask_sqlalchemy import SQLAlchemy
 from flask_wtf import FlaskForm
+from sqlalchemy import Column
 from sqlalchemy import Integer
 from sqlalchemy import String
-from sqlalchemy.orm import Mapped
-from sqlalchemy.orm import mapped_column
 from werkzeug.security import check_password_hash
 from werkzeug.security import generate_password_hash
 from wtforms import fields
@@ -43,17 +42,17 @@ def index():
 
 # inherit from flask_login.UserMixin so no need to define login methods
 class User(db.Model, flask_login.UserMixin):
-    id: Mapped[int] = mapped_column(Integer, primary_key=True)
-    username: Mapped[str] = mapped_column(
+    id = Column(Integer, primary_key=True)
+    username = Column(
         String(80),
         unique=True,
         index=True,
     )
     # having a _ will make the field hidden in flask-admin edit/create forms
-    _password: Mapped[str] = mapped_column(String(128), nullable=True)
+    _password = Column(String(128), nullable=True)
 
     @property
-    def password(self) -> str:
+    def password(self):
         return self._password
 
     @password.setter
@@ -67,7 +66,7 @@ def password(self, password: str) -> None:
                 # on MacOS, default method="scrypt" gives AttributeError
                 method="pbkdf2",
             )
-            self.alternative_id = uuid4().hex
+            self.alternative_id = uuid4().hex  # type: ignore[assignment]
             # password.setter can be called even without any user logged in, e.g.
             # when creating db
             if flask_login.current_user and flask_login.current_user == self:
@@ -82,9 +81,7 @@ def check_password(self, password: t.Optional[str]) -> bool:
 
     # security: https://flask-login.readthedocs.io/en/latest/#alternative-tokens
     # allows logout users
-    alternative_id: Mapped[str] = mapped_column(
-        String(32), default=uuid4().hex, index=True
-    )
+    alternative_id = Column(String(32), default=uuid4().hex, index=True)
 
     def get_id(self):
         """