fix update rprofgui issue by adding show to w_plot function

Author: fherwig

ppmpy/ppm.py

@@ -9384,6 +9384,7 @@ def get(self, var, fname, num_type='NDump', resolution='l'):
     def rprofgui(self,ifig=11):
         def w_plot(dump1,dump2,ything,log10y=False,ifig=ifig):
             self.rp_plot([dump1,dump2],ything,logy=log10y,ifig=ifig)
+            pyl.show()
         rp_hst = self.get_history()
         dumpmin, dumpmax = rp_hst.get('NDump')[0],rp_hst.get('NDump')[-1]
         dumpmean = int(2*(-dumpmin + dumpmax)/3.)