Add support for additional tasks via HuggingFace hub

setup.py

@@ -68,7 +68,7 @@
 
 
 extras["test"] = [
-    "pytest",
+    "pytest>=7.2.0,<8.0.0",
     "pytest-xdist",
     "parameterized",
     "psutil",

src/sagemaker_huggingface_inference_toolkit/transformers_utils.py

@@ -231,15 +231,18 @@ def infer_task_from_model_architecture(model_config_path: str, architecture_inde
         architecture = config.get("architectures", [None])[architecture_index]
 
     task = None
+    if os.environ["HF_TASK"]:
+        return os.environ["HF_TASK"]
+
     for arch_options in ARCHITECTURES_2_TASK:
         if architecture.endswith(arch_options):
             task = ARCHITECTURES_2_TASK[arch_options]
 
     if task is None:
         raise ValueError(
-            f"Task couldn't be inferenced from {architecture}."
-            f"Inference Toolkit can only inference tasks from architectures ending with {list(ARCHITECTURES_2_TASK.keys())}."
-            "Use env `HF_TASK` to define your task."
+            f"Task not supported via Transformers supported tasks or"
+            f" {list(ARCHITECTURES_2_TASK.keys())}."
+            "Use inference.py to install unsupported task separately"
         )
     # set env to work with
     os.environ["HF_TASK"] = task

tests/unit/test_transformers_utils.py

@@ -131,6 +131,15 @@ def test_infer_task_from_model_architecture():
         assert task == "token-classification"
 
 
+@require_torch
+def test_infer_task_from_model_architecture_from_env_variable():
+    os.environ["HF_TASK"] = "image-classification"
+    with tempfile.TemporaryDirectory() as tmpdirname:
+        storage_dir = _load_model_from_hub(TASK_MODEL, tmpdirname)
+        task = infer_task_from_model_architecture(f"{storage_dir}/config.json")
+        assert task == "image-classification"
+
+
 @require_torch
 def test_wrap_conversation_pipeline():
     init_pipeline = pipeline(