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Commit aa21ed8

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anntzeranntzer
committed
Suppress exception chaining in colormap lookup.
Replace ``` Traceback (most recent call last): File "../matplotlib/cm.py", line 131, in __getitem__ return self._cmaps[item].copy() KeyError: 'foo' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "<string>", line 4, in <module> File ".../matplotlib/cm.py", line 133, in __getitem__ raise KeyError(f"{item!r} is not a known colormap name") KeyError: "'foo' is not a known colormap name" ``` by just the latter block.
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‎lib/matplotlib/cm.py

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+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -130,7 +130,7 @@ def __getitem__(self, item):
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try:
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return self._cmaps[item].copy()
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except KeyError:
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raise KeyError(f"{item!r} is not a known colormap name")
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raise KeyError(f"{item!r} is not a known colormap name") from None
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def __iter__(self):
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return iter(self._cmaps)

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