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[FIX] Tree Viewer: check if there is selected class value #2224

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May 3, 2017
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5 changes: 3 additions & 2 deletions Orange/widgets/visualize/owtreeviewer.py
Original file line number Diff line number Diff line change
Expand Up @@ -263,6 +263,7 @@ def ctree(self, model=None):
self.color_combo.clear()
self.closeContext()
self.model = model
self.target_class_index = 0
if model is None:
self.info.setText('No tree.')
self.root_node = None
Expand Down Expand Up @@ -440,7 +441,7 @@ def _get_tree_adapter(self, model):
return TreeAdapter(model)


def test():
def main():
"""Standalone test"""
import sys
from AnyQt.QtWidgets import QApplication
Expand All @@ -458,4 +459,4 @@ def test():
ow.saveSettings()

if __name__ == "__main__":
test()
main()