Fix event binding in python client test
Fix event binding in python client test

girder/girder,jbeezley/girder,RafaelPalomar/girder,girder/girder,girder/girder,Kitware/girder,jbeezley/girder,girder/girder,manthey/girder,Kitware/girder,jbeezley/girder,kotfic/girder,kotfic/girder,manthey/girder,kotfic/girder,kotfic/girder,RafaelPalomar/girder,Kitware/girder,kotfic/girder,RafaelPalomar/girder,RafaelPalomar/girder,manthey/girder,jbeezley/girder,RafaelPalomar/girder,Kitware/girder,manthey/girder