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四、噩梦再袭
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重复下面这个example,也失败了,
http://nbviewer.jupyter.org/github/qutip/qutip-notebooks/blob/master/examples/example-JC-model-wigner-function.ipynb
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五、错误提示
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/root/anaconda3/lib/python3.5/site-packages/IPython/parallel.py:13: ShimWarning: The `IPython.parallel` package has been deprecated. You should import from ipyparallel instead.
"You should import from ipyparallel instead.", ShimWarning)
/root/anaconda3/lib/python3.5/site-packages/matplotlib/animation.py:784: UserWarning: MovieWriter avconv unavailable
warnings.warn("MovieWriter %s unavailable" % writer)
Traceback (most recent call last):
File "/root/anaconda3/lib/python3.5/site-packages/matplotlib/animation.py", line 787, in save
writer = writers[writers.list()[0]](fps, codec, bitrate,
IndexError: list index out of range
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "test05.py", line 129, in <module>
plot_animation(plot_setup, plot_result, result)
File "/root/anaconda3/lib/python3.5/site-packages/qutip/ipynbtools.py", line 373, in plot_animation
anim.save(name + '.mp4', fps=10, writer="avconv", codec="libx264")
File "/root/anaconda3/lib/python3.5/site-packages/matplotlib/animation.py", line 791, in save
raise ValueError("Cannot save animation: no writers are "
ValueError: Cannot save animation: no writers are available. Please install mencoder or ffmpeg to save animations.
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请帮帮新手 |
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