Ensure Model.is_repack() returns a boolean (#5060)

* Ensure Model.is_repack() returns a boolean

* update test

---------

Co-authored-by: pintaoz <[email protected]>

Author: pintaoz-aws

src/sagemaker/model.py

@@ -745,6 +745,8 @@ def is_repack(self) -> bool:
         Returns:
             bool: if the source need to be repacked or not
         """
+        if self.source_dir is None or self.entry_point is None:
+            return False
         return self.source_dir and self.entry_point and not self.git_config
 
     def _upload_code(self, key_prefix: str, repack: bool = False) -> None:
@@ -2143,6 +2145,8 @@ def is_repack(self) -> bool:
         Returns:
             bool: if the source need to be repacked or not
         """
+        if self.source_dir is None or self.entry_point is None:
+            return False
         return self.source_dir and self.entry_point and not (self.key_prefix or self.git_config)
 
 

tests/unit/sagemaker/model/test_framework_model.py

@@ -511,6 +511,20 @@ def test_is_repack_with_code_location(repack_model, sagemaker_session):
     assert not model.is_repack()
 
 
+@patch("sagemaker.utils.repack_model")
+def test_is_repack_with_none_type(repack_model, sagemaker_session):
+    """Test is_repack() returns a boolean value when source_dir and entry_point are None"""
+
+    model = FrameworkModel(
+        role=ROLE,
+        sagemaker_session=sagemaker_session,
+        image_uri=IMAGE_URI,
+        model_data=MODEL_DATA,
+    )
+
+    assert model.is_repack() is False
+
+
 @patch("sagemaker.git_utils.git_clone_repo")
 @patch("sagemaker.model.fw_utils.tar_and_upload_dir")
 def test_is_repack_with_git_config(tar_and_upload_dir, git_clone_repo, sagemaker_session):

tests/unit/sagemaker/model/test_model.py

@@ -1046,6 +1046,20 @@ def test_is_repack_with_code_location(repack_model, sagemaker_session):
     assert model.is_repack()
 
 
+@patch("sagemaker.utils.repack_model")
+def test_is_repack_with_none_type(repack_model, sagemaker_session):
+    """Test is_repack() returns a boolean value when source_dir and entry_point are None"""
+
+    model = Model(
+        role=ROLE,
+        sagemaker_session=sagemaker_session,
+        image_uri=IMAGE_URI,
+        model_data=MODEL_DATA,
+    )
+
+    assert model.is_repack() is False
+
+
 @patch("sagemaker.git_utils.git_clone_repo")
 @patch("sagemaker.model.fw_utils.tar_and_upload_dir")
 def test_is_repack_with_git_config(tar_and_upload_dir, git_clone_repo, sagemaker_session):