Line 733 in ticker.py in matplotlib 0.87.2 has a potential divide by zero error:
var = dv/max(abs(vmin),abs(vmax))
I've triggered it with the following:
import pylab
import numpy as np
t = np.array([0.,1.,2.,3.],float)
a = np.array([0.,0.,0.,0.],float)
pylab.plot(t,a)
The error is:
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "C:\Python24\Lib\site-packages\matplotlib\pylab.py", line 2018, in plot
ret = gca().plot(*args, **kwargs)
File "C:\Python24\Lib\site-packages\matplotlib\axes.py", line 2790, in plot
self.autoscale_view()
File "C:\Python24\Lib\site-packages\matplotlib\axes.py", line 817, in autoscal
e_view
self.set_ylim(locator.autoscale())
File "c:\python24\lib\site-packages\matplotlib\ticker.py", line 798, in autosc
ale
return take(self.bin_boundaries(dmin, dmax), [0,-1])
File "c:\python24\lib\site-packages\matplotlib\ticker.py", line 768, in bin_bo
undaries
scale, offset = scale_range(vmin, vmax, nbins)
File "c:\python24\lib\site-packages\matplotlib\ticker.py", line 733, in scale_
range
var = dv/max(abs(vmin), abs(vmax))
ZeroDivisionError: float division