From ac8df84b722568c719bbcfd7fdca368683419075 Mon Sep 17 00:00:00 2001
From: Nikolai Hartmann <Nikolai.Hartmann@physik.uni-muenchen.de>
Date: Thu, 7 Jun 2018 12:05:32 +0200
Subject: [PATCH] Convert type of DatasetNumber and EventNumber to unsigned
 long long

---
 toolkit.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/toolkit.py b/toolkit.py
index 0bc2c29..7e1954a 100755
--- a/toolkit.py
+++ b/toolkit.py
@@ -283,8 +283,8 @@ class ClassificationProject(object):
                                      selection=self.selection,
                                      start=1, step=self.step_bkg)
 
-            self.s_eventlist_train = self.s_train[self.identifiers]
-            self.b_eventlist_train = self.b_train[self.identifiers]
+            self.s_eventlist_train = self.s_train[self.identifiers].astype(dtype=[(branchName, "u8") for branchName in self.identifiers])
+            self.b_eventlist_train = self.b_train[self.identifiers].astype(dtype=[(branchName, "u8") for branchName in self.identifiers])
             self._dump_training_list()
 
             # now we don't need the identifiers anymore
-- 
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