python - Matplotlib with Eclipse PyDev is not plotting -

i have following problem when using matplotlib in eclipse pydev.

import datetime import matplotlib.pyplot plt import numpy np import pandas pd import sklearn  ...  # plot results fig = plt.figure() fig.patch.set_facecolor('white')  # plot price of spy etf ax1 = fig.add_subplot(211,  ylabel='spy etf price in $') bars['close'].plot(ax=ax1, color='r', lw=2.)  # plot equity curve ax2 = fig.add_subplot(212, ylabel='portfolio value in $') returns['total'].plot(ax=ax2, lw=2.)  fig.show() 

i left out calculations in between. happens when run program python launcher starts , disappears after 1 second.

i tried solve problem on mac osx , on ubuntu , in both cases did not work.

when using idle on other hand works , come out following output:

in general matplotlib works eclipse displayed output of following code:

import matplotlib.pyplot plt import matplotlib.pylab pylab plt.plot([1,2,3,4]) plt.ylabel('some numbers') plt.show() 

i set backend template in ~/.matplotlib/matplotlibrc, to

backend : qt4agg 

maybe has idea why can not plot in eclipse. thank you!