Clean up other Python files (#11379)

* Address issues found by ruff check.

* Make mypy happy; remove some Python 2 compat code.

* Also declare port1.

.azure-pipelines/scripts/time-command.py

@@ -20,7 +20,7 @@ def main():
 
     for line in sys.stdin:
         seconds = time.time() - start
-        sys.stdout.write("%02d:%02d %s" % (seconds // 60, seconds % 60, line))
+        sys.stdout.write(f"{seconds // 60:02}:{seconds % 60:02} {line}")
         sys.stdout.flush()