[Matplotlib-users] cannot plot in loops with matplotlib 0.99. 0.98 works fine

[tva <tv...@br...>]

Hi all

with matplotlib 0.98.5.3 this script will draw new lines as the scrips is
running:

from pylab import *
x = arange(0,2*pi,0.01)           
for i in arange(1,20):
	
	y=sin(x+i)
	plot(x,y)  # update the data
	show()


with matplotlib 0.99, the exact same script runs to the end without plotting
and then plots all the lines. This is just a trivial example but for some
applications it is useful to monitor the evolution of curves as the script
is running - allows me to update parameters if something diverges.
Any idea why there is such a difference between 0.98.5.3 and 0.99 ?? 
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