Add error message concerning revision (#13266)

* add error message concerning revision

* Update src/transformers/configuration_utils.py

Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* re-add double line endings

* is not None instead of implicit bool casting

Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

src/transformers/configuration_utils.py

@@ -541,6 +541,10 @@ class PretrainedConfig(PushToHubMixin):
                 f"- '{pretrained_model_name_or_path}' is a correct model identifier listed on 'https://huggingface.co/models'\n\n"
                 f"- or '{pretrained_model_name_or_path}' is the correct path to a directory containing a {CONFIG_NAME} file\n\n"
             )
+
+            if revision is not None:
+                msg += f"- or '{revision}' is a valid git identifier (branch name, a tag name, or a commit id) that exists for this model name as listed on its model page on 'https://huggingface.co/models'\n\n"
+
             raise EnvironmentError(msg)
 
         except json.JSONDecodeError:

src/transformers/modeling_utils.py

@@ -1265,8 +1265,12 @@ class PreTrainedModel(nn.Module, ModuleUtilsMixin, GenerationMixin, PushToHubMix
                 msg = (
                     f"Can't load weights for '{pretrained_model_name_or_path}'. Make sure that:\n\n"
                     f"- '{pretrained_model_name_or_path}' is a correct model identifier listed on 'https://huggingface.co/models'\n\n"
-                    f"- or '{pretrained_model_name_or_path}' is the correct path to a directory containing a file named one of {WEIGHTS_NAME}, {TF2_WEIGHTS_NAME}, {TF_WEIGHTS_NAME}.\n\n"
+                    f"- or '{pretrained_model_name_or_path}' is the correct path to a directory containing a file named one of {WEIGHTS_NAME}, {TF2_WEIGHTS_NAME}, {TF_WEIGHTS_NAME}\n\n"
                 )
+
+                if revision is not None:
+                    msg += f"- or '{revision}' is a valid git identifier (branch name, a tag name, or a commit id) that exists for this model name as listed on its model page on 'https://huggingface.co/models'\n\n"
+
                 raise EnvironmentError(msg)
 
             if resolved_archive_file == archive_file:

src/transformers/tokenization_utils_base.py

@@ -1723,6 +1723,10 @@ class PreTrainedTokenizerBase(SpecialTokensMixin, PushToHubMixin):
                 f"- '{pretrained_model_name_or_path}' is a correct model identifier listed on 'https://huggingface.co/models'\n\n"
                 f"- or '{pretrained_model_name_or_path}' is the correct path to a directory containing relevant tokenizer files\n\n"
             )
+
+            if revision is not None:
+                msg += f"- or '{revision}' is a valid git identifier (branch name, a tag name, or a commit id) that exists for this model name as listed on its model page on 'https://huggingface.co/models'\n\n"
+
             raise EnvironmentError(msg)
 
         for file_id, file_path in vocab_files.items():