I just tried running backend_driver.py with numerix set to
> Numeric, and I'm repeatedly getting the following error:
> line 2502, in bar yerr = asarray([yerr]*nbars, Float) #
> Float converts Nones to NANs File
> line 134, in asarray return multiarray.array(a, typecode,
> copy=0, savespace=savespace) TypeError: a float is
> required driving image_demo.py
That was in histogram_demo which called bar with xerr=None and
yerr=None and bar was assuming a numpy-ism in converting None to nan.
I just committed a change to fix it.