Merge pull request #1001 from EleutherAI/fix-alias

[Refactor] will check if group_name is None

lm_eval/evaluator.py

@@ -226,6 +226,7 @@ def evaluate(
             versions[group_name] = "N/A"
 
         else:
+            group_name = None
             task_hierarchy[task_name] = []
 
         if task is None:
@@ -237,8 +238,10 @@ def evaluate(
         if "task_alias" in configs[task_name]:
             task_group_alias[task_name] = configs[task_name]["task_alias"]
 
-        if ("group_alias" in configs[task_name]) and (
-            group_name not in task_group_alias
+        if (
+            ("group_alias" in configs[task_name])
+            and (group_name not in task_group_alias)
+            and (group_name is not None)
         ):
             task_group_alias[group_name] = configs[task_name]["group_alias"]