Animation with blit broken #6332
Description
Matplotliv 1.5.1 on Linux (Debian) should have animations fixed in 1.5.1 but I still get an error for what used to work.
Example:
%matplotlib inline
from pylab import *
import matplotlib.animation
import matplotlib.patches
fig, ax = plt.subplots(figsize=(13, 8))
def update(frame):
ax.add_patch(matplotlib.patches.Rectangle(numpy.array([0, 0]), 1, 1))
anim = matplotlib.animation.FuncAnimation(fig, update, frames=10, blit=True) # blit=True !!
anim.save('anim.mp4', fps=20, writer='avconv', codec='libx264')
Gives:
python3.5/site-packages/matplotlib/animation.py in _draw_frame(self, framedata)
1212 self._drawn_artists = self._func(framedata, *self._args)
1213 if self._blit:
-> 1214 for a in self._drawn_artists:
1215 a.set_animated(self._blit)
TypeError: 'NoneType' object is not iterable