From 48ded485f80f8ce5ddd7c38ee1ab8d4e166ecf10 Mon Sep 17 00:00:00 2001
From: zineb aly <aly.zineb.az@gmail.com>
Date: Wed, 19 Feb 2020 22:03:26 +0100
Subject: [PATCH] remove sets

---
 km3io/offline.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/km3io/offline.py b/km3io/offline.py
index ba4d0e5..4677316 100644
--- a/km3io/offline.py
+++ b/km3io/offline.py
@@ -313,7 +313,7 @@ class Reader:
             do not contain data. Therefore, the keys corresponding to these
             fake branches are not read.
         """
-        keys = set(self.keys.valid_keys)
+        keys = self.keys.valid_keys
         if key not in keys and not isinstance(key, int):
             raise KeyError(
                 "'{}' is not a valid key or is a fake branch.".format(key))
-- 
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