From bc4e4e23d97f5605aa318e31f0bb3f380dc3d96f Mon Sep 17 00:00:00 2001 From: Kovid Goyal Date: Wed, 14 Apr 2010 10:11:13 +0530 Subject: [PATCH] ... --- src/calibre/library/custom_columns.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/calibre/library/custom_columns.py b/src/calibre/library/custom_columns.py index e51b4380b9..75b112dbae 100644 --- a/src/calibre/library/custom_columns.py +++ b/src/calibre/library/custom_columns.py @@ -204,7 +204,7 @@ class CustomColumns(object): for x in set(set_val) - set(existing): if x is None: continue - existing = self.all_custom(num=data['num']) + existing = list(self.all_custom(num=data['num'])) lx = [t.lower() if hasattr(t, 'lower') else t for t in existing] try: idx = lx.index(x.lower() if hasattr(x, 'lower') else x)