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Embedding Matplotlib Animations in IPython Notebooks

Fixed Python 3.12 · checked 17 Oct 2026 · model cost $0.062

After applying the fixes, the tutorial now runs successfully under Python 3.12. Initially it failed because the IPython package was missing, causing a ModuleNotFoundError when importing IPython.display, and because the code used the deprecated bytes.encode('base64') method, which was removed in Python 3, leading to an AttributeError. The repairs installed IPython via pip and replaced the obsolete encoding call with base64.b64encode().decode('ascii'), resolving both issues.

2 changes to make it work today

Install matplotlib and numpy

s2 · shell migrate

Add ipython to the pip install command so that the IPython module is available for step s5.

@@ -1 +1 @@

-pip install matplotlib numpy

+pip install matplotlib numpy ipython

Sources

Installing IPython — IPython 9.17.1 documentationIPython requires several dependencies to work correctly, it is not recommended to install IPython and all its dependencies manually as this can be quite long and troublesome. You should use the python package manager `pip`.
ImportError: No module named IPythonWhen i try to use from IPython.display import clear_output, display_html, then i show the error: (ImportError: No module named IPython) I am using
ModuleNotFoundError: no module named 'ipython'The ModuleNotFoundError: no module named 'ipython' error occurs when you have not installed the IPython package on your system. To install IPython, run:.
Installation Guide | IPythonGet IPython up and running on your system

Define anim_to_html function and VIDEO_TAG

s4 · run_code migrate

Replace deprecated bytes.encode('base64') with base64.b64encode().decode('ascii') for Python 3 compatibility.

@@ -1,3 +1,4 @@

from tempfile import NamedTemporaryFile

+import base64

VIDEO_TAG = """<video controls>

@@ -11,5 +12,5 @@

anim.save(f.name, fps=20, extra_args=['-vcodec', 'libx264'])

video = open(f.name, "rb").read()

- anim._encoded_video = video.encode("base64")

+ anim._encoded_video = base64.b64encode(video).decode('ascii')

return VIDEO_TAG.format(anim._encoded_video)

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