[Matplotlib-users] Interactive with standard python TkAgg...

[Ned <a.g...@du...>]

Hi,
I'm trying to sort out interactive use with standard python but am having 
problems.
If I do:
import matplotlib
matplotlib.use("TkAgg")
matplotlib.interactive(True)
import pylab
pylab.ion()
pylab.plot([1,2,3,4])

Then I would expect a plot to appear.  But it doesn't.  I then have to call:

pylab.draw()

twice before getting the plot (the first call brings up an empty plot 
window, while the second displays the plot).

Then, if I do:
pylab.plot([1,2,3,2,3,4,5])
again, it does nothing, until I do
pylab.draw()

Also the window isn't sensitive to expose events - if it is blocked by 
another window/minimised etc, then the contents don't reappear, just go 
blank.

So, it is semi-interactive, in that I can use the python command line to 
add new lines, but I have to call draw each time (which I shouldn't have 
to), and also it doesn't redraw itself correctly.

Can anyone give ideas?

I'm running on ubuntu 10.04 32bit, with distro package 0.99 for 
matplotlib.  I haven't been able to find anything that helps online 
either.

Thanks...