python - Starting a new event loop for chaco-traits popup window from pyside? -

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i trying make numpy image slider using chaco launched pyside. ive tried using matplotlib lacked speed updating ive been trying chaco instead. script below starts initializing pyside dialog, here trying open chaco/traits window used display different views of numpy arrays using slider scroll through arrays movie. script works warning message: 

qcoreapplication::exec: event loop running

i think need start chaco window using own thread or not sure how go it. appreciated, script below:

import numpy np import sys pyside.qtcore import * pyside.qtgui import *  app = qapplication(sys.argv)  traits.api import * traitsui.api import * enable.api import * enable.component_editor import * chaco.api import * chaco.tools.api import * chaco import *   class chacowindow(hastraits):     #chaco popup window slider     plot = instance(hplotcontainer)     #slider max value set using frame     frame = int     high = 100      traits_view = view(group(                     item('plot',                               editor=componenteditor(),                               show_label=false),                     item( 'frame',                               editor = rangeeditor(                               high_name   = 'high',                              format      = '%d',                              is_float    = false))),                    width=1000, height=600, resizable=true, title="track viewer")      def __init__(self, datadict, arg1):          self.high = arg1 - 1         self.datadict = datadict          self.data1 = self.datadict['movie1']         self.data2 = self.datadict['movie2']          #left plot         self.plotdata1 = arrayplotdata(image1 = self.data1['0'])         plotleft = plot(self.plotdata1)         plotleft.img_plot("image1")                        #right plot           self.plotdata2 = arrayplotdata(image2 = self.data2['0'])         plotright = plot(self.plotdata2)         plotright.img_plot("image2")          #add zoom/pan tools         plotleft.tools.append(pantool(plotleft))         plotleft.tools.append(betterzoom(plotleft, zoom_factor=0.8, zoom_to_mouse = true))         plotleft.tools.append(dragzoom(plotleft, drag_button="right"))            plotright.tools.append(pantool(plotright))         plotright.tools.append(betterzoom(plotright))         plotright.tools.append(dragzoom(plotright, drag_button="right"))         #axes shared                   plotleft.range2d = plotright.range2d         container = hplotcontainer(plotleft, plotright)         self.plot = container      def _frame_changed(self):         #change frame when slider changes         self.plotdata1.set_data("image1", self.data1[str(self.frame)])         self.plotdata2.set_data("image2", self.data2[str(self.frame)])   class form(qdialog):     #basic form dialog using pyside     def __init__(self, datadict, parent=none):         super(form, self).__init__(parent)         self.datadict = datadict          self.totalframes = len(datadict['movie1'])         formatbutton1 = qpushbutton("format 1")                 buttonlayout = qhboxlayout()         buttonlayout.addstretch()         buttonlayout.addwidget(formatbutton1)         #add vbox space widgets         layout = qvboxlayout()                 layout.addlayout(buttonlayout)         self.setlayout(layout)         self.connect(formatbutton1, signal("clicked()"), self.setchaco)                              self.setwindowtitle('master form')      def setchaco(self):         #create chaco window instance         scatter = chacowindow(datadict, self.totalframes)         scatter.configure_traits(self)    if __name__ == "__main__":            #make demo data     ar0 = np.zeros((25,25))     ar0[10][10] = 1     ar1 = np.zeros((25,25))     ar1[12][12] = 1         #dictionary of images     datadict = {'movie1': {'0': ar0, '1':ar1, '2':ar0},                  'movie2': {'0': ar1, '1':ar0, '2':ar1}}     form = form(datadict)     form.show()     app.exec_()

i managed find solution. changing function solves problem:

def setchaco(self):     #create chaco window instance     scatter = chacowindow(datadict, self.totalframes)     #change line: scatter.configure_traits(self)     scatter.edit_traits()

this appears let pyside event loop handle everything.


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