# HG changeset patch
# User Frederic Bastien <bastienf@iro.umontreal.ca>
# Date 1210699385 14400
# Node ID 895b4b60f5e8bbb7b68a67fa3248e367b55b15b7
# Parent  bc72a0fa6d0199fb4e70fbf7c9c9a8d775bd25b1
bugfix. Otherwise the example was writed over and not a new one was returned

diff -r bc72a0fa6d01 -r 895b4b60f5e8 dataset.py
--- a/dataset.py	Tue May 13 13:09:59 2008 -0400
+++ b/dataset.py	Tue May 13 13:23:05 2008 -0400
@@ -4,7 +4,7 @@
 from misc import unique_elements_list_intersection
 from string import join
 from sys import maxint
-import numpy
+import numpy, copy
 
 from exceptions import *
 
@@ -1053,7 +1053,7 @@
           fields_values = source_dataset.minibatches(minibatch_size=len(source_dataset)).__iter__().next()
           assert all([len(self)==len(field_values) for field_values in fields_values])
           for example in fields_values.examples():
-              self.cached_examples.append(example)
+              self.cached_examples.append(copy.copy(example))
 
       self.fieldNames = source_dataset.fieldNames
       self.hasFields = source_dataset.hasFields