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Commit 2c59935

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greglucasgreglucas
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FIX: short-circuit the contour changed call when uninitialized
The Quadcontourset.changed() method assumes some attributes to be there. If we called changed from a parent class, the object may not have been initialized with those attributes yet, so skip that portion of the update.
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‎lib/matplotlib/contour.py

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+4Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1027,6 +1027,10 @@ def _make_paths(self, segs, kinds):
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return [mpath.Path(seg) for seg in segs]
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def changed(self):
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if not hasattr(self, "cvalues"):
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# Just return after calling the super() changed function
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cm.ScalarMappable.changed(self)
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return
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# Force an autoscale immediately because self.to_rgba() calls
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# autoscale_None() internally with the data passed to it,
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# so if vmin/vmax are not set yet, this would override them with

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