Hi John,
Thanks for the very fast response, but it doesn't quite work for my use
case. I don't know if it's because my default is interactive, or ipython
on general, or something else...
n21:~/work/Pointing> ipython -pylab -nobanner
In [1]: switch_backend('Agg')
/usr/local/src/python-2.5.2/lib/python2.5/site-packages/matplotlib/__init__.py:753:
UserWarning: This call to matplotlib.use() has no effect
because the the backend has already been chosen;
matplotlib.use() must be called *before* pylab, matplotlib.pyplot,
or matplotlib.backends is imported for the first time.
warnings.warn(_use_error_msg)
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
/home/jaffe/work/Pointing/<ipython console> in <module>()
/usr/local/src/python-2.5.2/lib/python2.5/site-packages/matplotlib/pyplot.py
in switch_backend(newbackend)
52 global new_figure_manager, draw_if_interactive, show
53 matplotlib.use(newbackend)
---> 54 reload(backends)
55 from backends import new_figure_manager,
draw_if_interactive, show
56
NameError: global name 'backends' is not defined
In [2]:
John Hunter wrote:
> On Fri, Jun 27, 2008 at 12:52 PM, Andrew Jaffe <[EMAIL PROTECTED]> wrote:
>> Hi all,
>>
>> All the usual apologies if this is a FAQ, but I can't find it.
>>
>> Is there any way to change the backend interactively when using ipython?
>
> Take a look at the pylab/pyplot switch_backends function
>
>
> switch_backend(newbackend)
> Switch the default backend to newbackend. This feature is
> **experimental**, and is only expected to work switching to an
> image backend. Eg, if you have a bunch of PostScript scripts that
> you want to run from an interactive ipython session, you may want
> to switch to the PS backend before running them to avoid having a
> bunch of GUI windows popup. If you try to interactively switch
> from one GUI backend to another, you will explode.
>
> Calling this command will close all open windows.
>
> Eg:
>
>>>> switch_backends('Agg')
>
> JDH
>
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