Update citer.py

Author: YUTING0907

citer.py

@@ -80,8 +80,9 @@ def update_results_parallel(conf, papers):
 
 def fetch_parallel(results, confs):
     with ThreadPoolExecutor(max_workers=1) as executor:
-        for conf in confs if conf in results:
-            print(f"---fetch_parallel--conf:{conf}---results[conf]:{results[conf]}")
+        for conf in confs:
+            if conf in results:
+                print(f"---fetch_parallel--conf:{conf}---results[conf]:{results[conf]}")
         future_to_conf = {
             executor.submit(update_results_parallel, conf, results[conf]): conf
             for conf in confs if conf in results