Dear everyone! please help me to solve my basic question!

 I want to 2D plotting in command-line mode (ipython). at the description, 
if I use pyqt, not pyside, I can use interactive mode to plotting.
but I can`t plotting in interactive mode, I must call QApplication.exec_() 
to make the windows appear.

my systems are
OS: macOS Sierra
Python: 3.5.3
pyqt: 5.6.0

I used qtconsole of anaconda navigator. my code are

import pyqtgraph as pg
pg.plot([1,2,3]) # windows are not appears
pg.QtGui.QApplication.exec_() #windows and plot are appears, but 
interactive console stop!

how can I do that?

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