Hi-
[OK, sorry for all the top-posting...]
Anyway, if I move to the current svn, I get
In [1]: switch_backend('Agg')
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
/Users/jaffe/home/python/<ipython console> in <module>()
/Users/jaffe/Library/Python/2.5/site-packages/matplotlib-0.98.2-py2.5-macosx-10.3-fat.egg/matplotlib/pyplot.pyc
in switch_backend(newbackend)
53 close('all')
54 global new_figure_manager, draw_if_interactive, show
---> 55 matplotlib.use(newbackend, warn=False)
56 reload(matplotlib.backends)
57 from matplotlib.backends import pylab_setup
TypeError: use() got an unexpected keyword argument 'warn'
Andrew
Eric Firing wrote:
> Andrew,
>
> The traceback shows that you are tripping over something that has been
> changed since the version you are using, so it might work if you update
> your mpl, preferably from svn. I think the relevant change was made by
> John quite recently, but I haven't looked it up.
>
> Eric
>
> Andrew Jaffe wrote:
>> 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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