Merge pull request #626 from CAinDE/ensure-trailing-slash

Author: laughingman7743

pyathena/connection.py

@@ -261,7 +261,10 @@ def __init__(
         assert self.s3_staging_dir or self.work_group, (
             "Required argument `s3_staging_dir` or `work_group` not found."
         )
-
+        
+        if self.s3_staging_dir and not self.s3_staging_dir.endswith("/"):
+            self.s3_staging_dir = f"{self.s3_staging_dir}/"
+        
         if session:
             self._session = session
         else: