fix: Address Dialect.dbapi deprecation warning by implementing import_dbapi (#14)

Author: edgarrmondragon

.github/workflows/test.yaml

@@ -54,7 +54,7 @@ jobs:
         strategy:
             matrix:
                 python-version: ["3.8", "3.9", "3.10", "3.11"]
-                sqlalchemy-version: ["1", "2"]
+                sqlalchemy-version: ["1.*", "2.*"]
         steps:
             - uses: actions/checkout@v3
             - uses: actions/setup-python@v4

pyproject.toml

@@ -43,7 +43,7 @@ Source = "https://github.com/edgarrmondragon/sqlean-driver"
 source = "vcs"
 
 [tool.hatch.envs.default]
-dependencies = ["coverage[toml]>=6.5", "pytest", "sqlalchemy=={env:SQLALCHEMY_VERSION:1}.*"]
+dependencies = ["coverage[toml]>=6.5", "pytest", "sqlalchemy=={env:SQLALCHEMY_VERSION:2.*}"]
 [tool.hatch.envs.default.scripts]
 test = "pytest {args:tests}"
 test-cov = "coverage run -m pytest {args:tests}"

src/sqlean_driver/__init__.py

@@ -24,6 +24,14 @@ class SQLeanDialect(SQLiteDialect_pysqlite):
 
     @classmethod
     def dbapi(cls: type[SQLeanDialect]) -> ModuleType:  # type: ignore[override]
+        """Return the DBAPI module.
+
+        NOTE: This is a legacy method that will stop being used by SQLAlchemy at some point.
+        """
+        return cls.import_dbapi()
+
+    @classmethod
+    def import_dbapi(cls: type[SQLeanDialect]) -> ModuleType:
         """Return the DBAPI module."""
         import sqlean