Remove pin on SQLAlchemy version < 2.0

setup.cfg

@@ -35,7 +35,7 @@ include_package_data = true
 python_requires = >= 3.8
 install_requires =
   WTForms>=3.1
-  SQLAlchemy>=0.7.10,<2
+  SQLAlchemy>=1.4
 
 [flake8]
 # B = bugbear

tests/test_main.py

@@ -8,13 +8,13 @@
 from sqlalchemy.dialects.postgresql import INET
 from sqlalchemy.dialects.postgresql import MACADDR
 from sqlalchemy.dialects.postgresql import UUID
-from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import backref
+from sqlalchemy.orm import declarative_base
+from sqlalchemy.orm import registry
 from sqlalchemy.orm import relationship
 from sqlalchemy.orm import sessionmaker
 from sqlalchemy.schema import Column
 from sqlalchemy.schema import ColumnDefault
-from sqlalchemy.schema import MetaData
 from sqlalchemy.schema import Table
 from wtforms import fields
 from wtforms import Form
@@ -51,18 +51,18 @@ class AnotherInteger(sqla_types.Integer):
 
 class TestBase(TestCase):
     def _do_tables(self, mapper, engine):
-        metadata = MetaData()
+        mapper_registry = registry()
 
         test_table = Table(
             "test",
-            metadata,
+            mapper_registry.metadata,
             Column("id", sqla_types.Integer, primary_key=True, nullable=False),
             Column("name", sqla_types.String, nullable=False),
         )
 
         pk_test_table = Table(
             "pk_test",
-            metadata,
+            mapper_registry.metadata,
             Column("foobar", sqla_types.String, primary_key=True, nullable=False),
             Column("baz", sqla_types.String, nullable=False),
         )
@@ -74,12 +74,12 @@ def _do_tables(self, mapper, engine):
             {"__unicode__": lambda x: x.baz, "__str__": lambda x: x.baz},
         )
 
-        mapper(Test, test_table)
-        mapper(PKTest, pk_test_table)
+        mapper_registry.map_imperatively(Test, test_table)
+        mapper_registry.map_imperatively(PKTest, pk_test_table)
         self.Test = Test
         self.PKTest = PKTest
 
-        metadata.create_all(bind=engine)
+        mapper_registry.metadata.create_all(bind=engine)
 
     def _fill(self, sess):
         for i, n in [(1, "apple"), (2, "banana")]:

wtforms_sqlalchemy/orm.py

@@ -3,6 +3,7 @@
 """
 import inspect
 
+from sqlalchemy import inspect as sainspect
 from wtforms import fields as wtforms_fields
 from wtforms import validators
 from wtforms.form import Form
@@ -211,19 +212,23 @@ def conv_MSYear(self, field_args, **extra):
         field_args["validators"].append(validators.NumberRange(min=1901, max=2155))
         return wtforms_fields.StringField(**field_args)
 
-    @converts("dialects.postgresql.base.INET")
+    @converts("dialects.postgresql.types.INET", "dialects.postgresql.base.INET")
     def conv_PGInet(self, field_args, **extra):
         field_args.setdefault("label", "IP Address")
         field_args["validators"].append(validators.IPAddress())
         return wtforms_fields.StringField(**field_args)
 
-    @converts("dialects.postgresql.base.MACADDR")
+    @converts("dialects.postgresql.types.MACADDR", "dialects.postgresql.base.MACADDR")
     def conv_PGMacaddr(self, field_args, **extra):
         field_args.setdefault("label", "MAC Address")
         field_args["validators"].append(validators.MacAddress())
         return wtforms_fields.StringField(**field_args)
 
-    @converts("dialects.postgresql.base.UUID")
+    @converts(
+        "sql.sqltypes.UUID",
+        "dialects.postgresql.types.UUID",
+        "dialects.postgresql.base.UUID",
+    )
     def conv_PGUuid(self, field_args, **extra):
         field_args.setdefault("label", "UUID")
         field_args["validators"].append(validators.UUID())
@@ -253,12 +258,12 @@ def model_fields(
 
     See `model_form` docstring for description of parameters.
     """
-    mapper = model._sa_class_manager.mapper
+    mapper = sainspect(model)
     converter = converter or ModelConverter()
     field_args = field_args or {}
     properties = []
 
-    for prop in mapper.iterate_properties:
+    for prop in mapper.attrs.values():
         if getattr(prop, "columns", None):
             if exclude_fk and prop.columns[0].foreign_keys:
                 continue