diff --git a/opendbt/client.py b/opendbt/client.py
index c607c01..7b03a6b 100644
--- a/opendbt/client.py
+++ b/opendbt/client.py
@@ -26,6 +26,7 @@
 
     dbt.adapters.factory.AdapterContainer.register_adapter = dbt17.register_adapter
 
+
 class OpenDbtCli:
 
     @staticmethod
diff --git a/opendbt/examples.py b/opendbt/examples.py
index adc8eda..9cab46b 100644
--- a/opendbt/examples.py
+++ b/opendbt/examples.py
@@ -18,24 +18,25 @@ def submit_local_python_job(self, parsed_model: Dict, compiled_code: str):
 # NOTE this is local python execution so session is None
 model(dbt=dbtObj(None), session=None)
         """
-        with tempfile.NamedTemporaryFile(suffix=f'__{model_unique_id}.py', delete=False) as fp:
+        with tempfile.NamedTemporaryFile(suffix=f'__{model_unique_id}.py', delete=True) as fp:
             fp.write(__py_code.encode('utf-8'))
-            fp.close()
+            fp.flush()
             print(f"Created temp py file {fp.name}")
             Utils.runcommand(command=['python', fp.name])
+            fp.close()
 
 
 # NOTE! used for testing
-class DuckDBAdapterV1Custom_before_dbt18(DuckDBAdapter):
+class DuckDBAdapterTestingOnlyDbt17(DuckDBAdapter):
     def __init__(self, config) -> None:
         print(f"WARNING: Using User Provided DBT Adapter: {type(self).__module__}.{type(self).__name__}")
         super().__init__(config=config)
-        raise Exception("Custom user defined test adapter activated, exception")
+        raise Exception("Custom user defined test adapter activated, test exception")
 
 
 # NOTE! used for testing
-class DuckDBAdapterV1Custom_afer_dbt18(DuckDBAdapter):
+class DuckDBAdapterTestingOnlyDbt18(DuckDBAdapter):
     def __init__(self, config, mp_context: SpawnContext) -> None:
         print(f"WARNING: Using User Provided DBT Adapter: {type(self).__module__}.{type(self).__name__}")
         super().__init__(config=config, mp_context=mp_context)
-        raise Exception("Custom user defined test adapter activated, exception")
+        raise Exception("Custom user defined test adapter activated, test exception")
diff --git a/setup.py b/setup.py
index 25f7ede..0bf03b4 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
             'opendbt = opendbt:main',
         ],
     },
-    version='0.3.0',
+    version='0.4.0',
     packages=find_packages(),
     author="Memiiso Organization",
     description='Python opendbt',
diff --git a/tests/test_custom_adapter.py b/tests/test_custom_adapter.py
index aa11bfd..66cca84 100644
--- a/tests/test_custom_adapter.py
+++ b/tests/test_custom_adapter.py
@@ -14,9 +14,9 @@ class TestOpenDbtProject(TestCase):
 
     def test_run_with_custom_adapter(self):
         if Version(DBT_VERSION.to_version_string(skip_matcher=True)) > Version("1.8.0"):
-            dbt_custom_adapter = 'opendbt.examples.DuckDBAdapterV1Custom_afer_dbt18'
+            dbt_custom_adapter = 'opendbt.examples.DuckDBAdapterTestingOnlyDbt18'
         else:
-            dbt_custom_adapter = 'opendbt.examples.DuckDBAdapterV1Custom_before_dbt18'
+            dbt_custom_adapter = 'opendbt.examples.DuckDBAdapterTestingOnlyDbt17'
 
         dp = OpenDbtProject(project_dir=self.DBTTEST_DIR, profiles_dir=self.DBTTEST_DIR,
                             args=['--vars', f"{{'dbt_custom_adapter': '{dbt_custom_adapter}'}}"])