I am not much of a Python jockey, but if your generated pyuic4 output is in file Ui_integrator.py then
Qt Code: 
  1. from Ui_integrator import Ui_integrator
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seems closer to the mark. The first Ui_integrator (module name) gets mapped to the file Ui_integrator.py, and the second Ui_integrator is the name of the symbol (class in this case) to import.