From 4d391af254a7b23ed1ea04cd9f6f169ed1bc12f5 Mon Sep 17 00:00:00 2001
From: Lion Krischer <lion.krischer@gmail.com>
Date: Tue, 25 Apr 2017 15:46:55 +0200
Subject: [PATCH] python 2.7 compat.

---
 instaseis/scripts/repack_db.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/instaseis/scripts/repack_db.py b/instaseis/scripts/repack_db.py
index 3293f910..0c9ad659 100644
--- a/instaseis/scripts/repack_db.py
+++ b/instaseis/scripts/repack_db.py
@@ -496,7 +496,7 @@ def repack_database(input_folder, output_folder, contiguous,
     if input_folder == output_folder:
         if "ordered_output.nc4" in [os.path.basename(_i) for _i in
                                     found_filenames]:
-            raise FileExistsError()
+            raise ValueError("ordered_output.nc4 already exists.")
     else:
         os.makedirs(output_folder)