python - Pylab animation multiple figures -

i want update multiple figures using pylab animation. initialize new figure each channel display , set interactive mode off using:

    pyplot.ion()     pyplot.show() 

in class containing figure there's ring buffer , method update data:

    def append_data(self, data):         update buffers data          ...         ...          self.lineb.set_data(self.tbuf, self.bbuf)         self.ax1.set_xlim( [min(self.tbuf), max(self.tbuf)] )         self.ax1.set_ylim( [min(self.bbuf), max(self.bbuf)] )          ...         ...          self.fig.show()         pyplot.draw() 

the problem: more 1 figure, last 1 updates correctly. other ones not refresh. know data correctly added each figure's buffer, problem not there.

i found solution following this article.

i initialized figure name:

fig = pyplot.figure(name) 

and changed lines:

    self.fig.show()     pyplot.draw() 

to:

    pyplot.figure(name)     pyplot.draw() 

apparently works, not sure why.