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Description
Bug summary
It seems to be that gif animations cannot be generated anymore because of empty list for ax_fig.lines[0].get_xdata().
Currently, I got the following error in the CI run.
UNEXPECTED EXCEPTION: IndexError('list index out of range')
Traceback (most recent call last):
File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 224, in saving
yield self
File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 1126, in save
writer.grab_frame(**savefig_kwargs)
File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 499, in grab_frame
self._frame.append(im)
AttributeError: 'PillowWriter' object has no attribute '_frame'. Did you mean: '_frames'?
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/runner/.local/share/uv/python/cpython-3.10.16-linux-x86_64-gnu/lib/python3.10/doctest.py", line 1350, in __run
exec(compile(example.source, filename, "single",
File "<doctest umf.images.diagrams.ClassicPlot[30]>", line 1, in <module>
File "/home/runner/work/useful-math-functions/useful-math-functions/umf/images/diagrams.py", line 335, in plot_save_gif
anim.save(filename=fname, writer="imagemagick", dpi=settings.dpi, **kwargs)
File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 1098, in save
with (writer.saving(self._fig, filename, dpi),
File "/home/runner/.local/share/uv/python/cpython-3.10.16-linux-x86_64-gnu/lib/python3.10/contextlib.py", line 153, in __exit__
self.gen.throw(typ, value, traceback)
File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 226, in saving
self.finish()
File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 506, in finish
self._frames[0].save(
IndexError: list index out of range
/home/runner/work/useful-math-functions/useful-math-functions/umf/images/diagrams.py:73: UnexpectedException
See also:
Code for reproduction
https://github.com/Anselmoo/useful-math-functions/pull/84Actual outcome
AttributeError: 'PillowWriter' object has no attribute '_frame'. Did you mean: '_frames'?Expected outcome
Working like previously Anselmoo/useful-math-functions#71
So, I have tested both backend poetry and uv, but it seems both are not working.
Additional information
If _frame is changed to _frames in local .venv, it is working fine.
dependencies = [
"numpy>=2.0.0,<3",
"pydantic>=2.0.0,<3",
"scipy>=1.11.2,<2",
]
[project.optional-dependencies]
matplotlib = [
"matplotlib (>=3.10.0,<4.0.0)",
"imagemagic (>=0.2.1,<0.3.0)",
]Operating system
No response
Matplotlib Version
3.10.0
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
pip