histogram with fixed bar widths

Hi, I want to generate histograms with fixed bars e.g. first

    > one from 55 to 56, the second one from 56 to 57 and so on. What
    > I found out so far, is that the hist command takes the array
    > and defines the bar width automatically.

    > Anyone, how to get fixed bars ?

    > How about replacing the hist function in axes.py with
    > something like


        if width is not None: width = 0.9*(bins[1]-bins[0])
should read

        if width is None: width = 0.9*(bins[1]-bins[0])