python - NumPy/Scipy locks PyQt event loops -

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i want call time-consuming scipy functinons dedicated pyqt qthread. afaik, when calling scipy functions, release gil , qt event should work.

cannot tell me, how can cope it?

# -*- coding: utf-8 -*-  import numpy np import scipy sp import scipy.interpolate  import os import sys import time pyqt4 import qtcore, qtgui   class longrunningworker(qtcore.qobject):      result_ready = qtcore.pyqtsignal(tuple)      @qtcore.pyqtslot()     def generate_uber_mega_data(self):         print "oy!"         # time.sleep(5)          r_ticks = np.linspace(0, 1000, 5000)         phi_ticks = np.linspace(0, 2 * np.pi, 5000)          r_grid, phi_grid = np.meshgrid(r_ticks, phi_ticks)          print u"starting interpolation"         spline = sp.interpolate.rectbivariatespline(r_ticks, phi_ticks, r_grid * phi_grid)         print u"Интерполяция всё / interpolation complete"         time.sleep(5)         print "vey!"         self.result_ready.emit((7, 40))  @qtcore.pyqtslot(tuple) def process_mega_data(mega_data):     print mega_data  if __name__ == "__main__":     app = qtgui.qapplication(sys.argv)     mega_button = qtgui.qpushbutton("press__________________________________________here")     mega_button.show()      background_thread = qtcore.qthread()     worker = longrunningworker()     worker.movetothread(background_thread)      background_thread.start()      # press here -- , interpolation start , gui events on spinbox freeze     mega_button.clicked.connect(worker.generate_uber_mega_data)     worker.result_ready.connect(process_mega_data)      # little scum doesn't change values, when interpolation running!     mega_spinbox = qtgui.qspinbox()     mega_spinbox.show()      sys.exit(app.exec_())


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