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@@ -393,7 +393,8 @@ class TimelineFrame(wx.Frame):
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for etype, maps in etypesDict.iteritems()]
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for mapset, etypesDict in tDict.iteritems()]
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# flatten this list
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- allDatasets = reduce(lambda x, y: x + y, reduce(lambda x, y: x + y, allDatasets))
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+ if allDatasets:
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+ allDatasets = reduce(lambda x, y: x + y, reduce(lambda x, y: x + y, allDatasets))
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for dataset in datasets:
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errorMsg = _("Space time dataset <%s> not found.") % dataset
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