Re: [Matplotlib-users] IPython interactivity gone with 0.80?

[John H. <jdh...@ac...>]

>>>>> "ravi" == ravi  <ra...@gm...> writes:

    ravi> Hi, I just upgraded to 0.80 from 0.73.1 on a Fedora Core 3
    ravi> machine. I am (and have been) using ipython 0.6.13 as my
    ravi> shell. After the upgrade, plots from scripts are no longer
    ravi> interactive - I need an explicit call to pylab.show() to
    ravi> show the plots.

    ravi> Do I need to update some settings? I am using the GTKAgg
    ravi> backend with all default parameters (no user-specific
    ravi> .matplotlibrc) and I compiled matplotlib from sources. Here
    ravi> is a simple script that no longer updates 100 times but just
    ravi> shows once:

Fernando and I made a conscious choice to turn off interactive mode
when running scripts from ipython, since this is usually what people
want and has better performance.  To override this, to need to
explicitly turn on/and off interactive mode where desired, and
possibly explicitly call draw in the animation loop where you want the
figure to be refreshed.

    import scipy
    import matplotlib
    from matplotlib import pylab

    pylab.ion()  # turn on interactive mode
    for x in scipy.arange(100):
        pylab.plot(scipy.randn(1000)+x)

    pylab.show()

You can turn interactive mode on and off where desired with pylab.ion
and pylab.ioff (to suppress draws for a sequence of figure updates)
and explicitly draw where desired with pylab.draw.  Details at
http://matplotlib.sf.net/interactive.html.

JDH