elif write dataframe

Co-authored-by: Copilot <[email protected]>

Author: bernhardkaindl

pytype_runner.py

@@ -145,7 +145,8 @@ def to_markdown(me, fp, returncode, results, branch_url):
         fp.write(f"\n#### {mylink} reports these error messages:\n")
         if not len(results):
             fp.write(f"\n*pytype exited with error {returncode}, please check the CI logs*\n")
-        fp.write(pd.DataFrame(results).to_markdown())
+        elif len(results):
+            fp.write(pd.DataFrame(results).to_markdown())
     else:
         fp.write(f"\n#### Congratulations, {mylink} reports no {pytype_link} errors.\n")
     fp.write("\n")