fix system prompt and tests

Former-commit-id: cfaa8e4890ad99ec1fb90d9550503d734b5c30b7

src/llamafactory/data/collator.py

@@ -157,7 +157,7 @@ class MultiModalDataCollatorForSeq2Seq(DataCollatorForSeq2Seq):
             features["position_ids"] = [torch.arange(input_ids.size(0)).long() for input_ids in features["input_ids"]]
             features["position_ids"] = pad_sequence(features["position_ids"], batch_first=True, padding_value=0)
             new_features = {"data": features}
-            new_features.update(features)
+            new_features.update({"labels": features['labels']})
             features = new_features
 
         return features

src/llamafactory/data/mm_plugin.py

@@ -383,6 +383,7 @@ class CpmOPlugin(BasePlugin):
         self._validate_input(images, videos)
         image_bounds_list = []
         valid_image_nums_ls = []
+        flag = False
         
         for input_ids in batch_ids:
             input_ids_ = torch.tensor(input_ids)
@@ -394,6 +395,8 @@ class CpmOPlugin(BasePlugin):
             image_start_tokens += 1
             image_end_tokens = torch.where(end_cond)[0]
             valid_image_nums = max(len(image_start_tokens), len(image_end_tokens))
+            if valid_image_nums > 0:
+                flag = True
             valid_image_nums_ls.append(valid_image_nums)
             image_bounds = torch.hstack(
                 [
@@ -403,6 +406,10 @@ class CpmOPlugin(BasePlugin):
             )
             image_bounds_list.append(image_bounds)
         
+        if not flag and len(images)>0:
+            valid_image_nums_ls = [1 for _ in range(len(batch_ids))]
+            image_bounds_list = [torch.arange(64) for _ in range(len(batch_ids))]
+
         mm_inputs = self._get_mm_inputs(images, videos, processor, valid_image_nums_ls=valid_image_nums_ls)
         mm_inputs.update({"image_bound": image_bounds_list})
         return mm_inputs

src/llamafactory/data/template.py

@@ -571,12 +571,6 @@ _register_template(
     format_user=StringFormatter(slots=["<|im_start|>user\n{{content}}<|im_end|>\n<|im_start|>assistant\n"]),
     format_assistant=StringFormatter(slots=["{{content}}<|im_end|>\n"]),
     format_system=StringFormatter(slots=["<|im_start|>system\n{{content}}<|im_end|>\n"]),
-    format_function=FunctionFormatter(slots=["{{content}}<|im_end|>\n"], tool_format="qwen"),
-    format_observation=StringFormatter(
-        slots=["<|im_start|>user\n<tool_response>\n{{content}}\n</tool_response><|im_end|>\n<|im_start|>assistant\n"]
-    ),
-    format_tools=ToolFormatter(tool_format="qwen"),
-    default_system="You are a helpful assistant.",
     stop_words=["<|im_end|>"],
     mm_plugin=get_mm_plugin(name="cpm_o", image_token="<image>", video_token="<video>"),
 )

tests/data/test_mm_plugin.py

@@ -79,6 +79,12 @@ def _is_close(batch_a: Dict[str, Any], batch_b: Dict[str, Any]) -> None:
                 assert len(batch_a[key]) == len(batch_b[key])
                 for tensor_a, tensor_b in zip(batch_a[key], batch_b[key]):
                     assert torch.allclose(tensor_a, tensor_b, rtol=1e-4, atol=1e-5)
+        elif isinstance(batch_a[key], list) and all(isinstance(item, list) for item in batch_a[key]) \
+            and len(batch_a[key])>0 and len(batch_a[key][0])>0 and isinstance(batch_a[key][0][0], torch.Tensor):
+            for item_a, item_b in zip(batch_a[key], batch_b[key]):
+                assert len(item_a) == len(item_a)
+                for tensor_a, tensor_b in zip(item_a, item_b):
+                    assert torch.allclose(tensor_a, tensor_b, rtol=1e-4, atol=1e-5)
         else:
             assert batch_a[key] == batch_b[key]