Re: [Matplotlib-users] Using blit=True in matplotlib.animation

[Thomas C. <tca...@gm...>]

Blitting not working for the osx backend is a long standing issue due to
differences between what is allowed in the different gui frame works.

You have to change the backend via `use` before you import pyplot.  If you
are still getting the error it is likely you tried to change the backend
_after_ pyplot was imported, in which case the `use` command does nothing.

Tom

On Sat, May 30, 2015 at 11:03 PM Peter Rowat <pe...@pe...> wrote:

> I’m on OS X, trying to write a multi-slider-controlled animation. If I
> have blit=True in the call to matplotlib.animation,
> I get this message
>
> matplotlib.animation.BackendError: The current backend is 'MacOSX'
> and may go into an infinite loop with blit turned on.  Either
> turn off blit or use an alternate backend, for example, like
> 'TKAgg', using the following prepended to your source code:
>
> import matplotlib
> matplotlib.use('TKAgg’)
> =====
>
> When I make this change  I still get the same error message, whether blit
> is set True or False.
> At least when blit=False the animation runs, which I can live with for the
> moment.
>
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