fix passk

Author: terryyz

bigcodebench/evaluate.py

@@ -205,7 +205,11 @@ def evaluate(
     else:
 
         pass_at_k = dict()
-        passk = list(pass_k)
+
+        if isinstance(pass_k, str):
+            passk = [int(k) for k in pass_k.split(",")]
+        else:
+            passk = pass_k
 
         if isinstance(selective_evaluate, str):
             selected_ids = set(selective_evaluate.split(","))