diff --git a/tools/generate_meta.py b/tools/generate_meta.py
index d332904..f90470e 100755
--- a/tools/generate_meta.py
+++ b/tools/generate_meta.py
@@ -19,7 +19,6 @@ import logging
 import pathlib
 import requests
 import subprocess
-import sys
 
 from git import exc
 from git import Repo
@@ -77,9 +76,9 @@ def extract_keywords(result):
 
     keywords = [kw.strip() for kw in keywords_text.split(",")]
     keywords = [kw for kw in keywords if kw and len(kw) > 0]
-    
+
     keywords = keywords[:5]
-    
+
     return ", ".join(keywords)
 
 
@@ -319,9 +318,9 @@ def process_service(args, service):
 
     new_branch.checkout()
 
-    rst_files = list(repo_dir.rglob("doc/**/*.rst")) + \
-                list(repo_dir.rglob("umn/**/*.rst")) + \
-                list(repo_dir.rglob("api-ref/**/*.rst"))
+    rst_files = (list(repo_dir.rglob("doc/**/*.rst"))
+                 + list(repo_dir.rglob("umn/**/*.rst"))
+                 + list(repo_dir.rglob("api-ref/**/*.rst")))
 
     processed_count = 0
     updated_count = 0
@@ -457,4 +456,4 @@ def main():
 
 
 if __name__ == "__main__":
-    main()
\ No newline at end of file
+    main()