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FIX: Typing of FuncAnimation #29984

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Merged
merged 1 commit into from
Apr 29, 2025
Merged

FIX: Typing of FuncAnimation #29984

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8 changes: 4 additions & 4 deletions lib/matplotlib/animation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1769,8 +1769,8 @@
self._drawn_artists = self._init_func()
if self._blit:
if self._drawn_artists is None:
raise RuntimeError('The init_func must return a '
'sequence of Artist objects.')
raise RuntimeError('When blit=True, the init_func must '

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lib/matplotlib/animation.py#L1772 

Added line #L1772 was not covered by tests
'return a sequence of Artist objects.')
for a in self._drawn_artists:
a.set_animated(self._blit)
self._save_seq = []
Expand All @@ -1787,8 +1787,8 @@

if self._blit:

err = RuntimeError('The animation function must return a sequence '
'of Artist objects.')
err = RuntimeError('When blit=True, the animation function must '
'return a sequence of Artist objects.')
try:
# check if a sequence
iter(self._drawn_artists)
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4 changes: 2 additions & 2 deletions lib/matplotlib/animation.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -206,9 +206,9 @@ class FuncAnimation(TimedAnimation):
def __init__(
self,
fig: Figure,
func: Callable[..., Iterable[Artist]],
func: Callable[..., Iterable[Artist] | None],
frames: Iterable | int | Callable[[], Generator] | None = ...,
init_func: Callable[[], Iterable[Artist]] | None = ...,
init_func: Callable[[], Iterable[Artist] | None] | None = ...,
fargs: tuple[Any, ...] | None = ...,
save_count: int | None = ...,
*,
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