Hi, Here is a testcase :
> a=range(10) b=rand(10) plot(a,b,'x') axis([0.,1e-7,0.,1.])
> Segmentation fault
Ouch -- I can repeat this with the minimal example
from pylab import *
plot([1,2,3], 'o')
xlim(0.,1e-7)
show()
In GTK you get
File "/home/jdhunter/debs/matplotlib/usr/lib/python2.4/site-packages/matplotlib/backends/backend_gdk.py", line 95, in draw_arc
self.gdkDrawable.draw_arc(gc.gdkGC, True, x, y, w, h, a1, a2)
OverflowError: long int too large to convert to int
and in *Agg you get the segfault, though PS and SVG work. It looks
like the data points are being transformed out to infinity, which is
breaking agg badly somewhere. I'll look into it.
> Thanks for your job on matplotlib 
Xavier.
Thanks for the report.
JDH