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Implement Path.__deepcopy__ avoiding infinite recursion #30198

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Merged
tacaswell merged 3 commits into from
Jun 26, 2025
Merged

Implement Path.__deepcopy__ avoiding infinite recursion #30198

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c7edce3
Implement Path.__deepcopy__ avoiding infinite recursion
jkseppan Jun 21, 2025
b20cf20
Compare arrays with assert_array_equal
jkseppan Jun 24, 2025
5c7c915
Fix TransformNode.__copy__
jkseppan Jun 21, 2025
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Fix TransformNode.__copy__ 
without calling copy.copy
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@jkseppan
jkseppan committed Jun 25, 2025
commit 5c7c91542127adf03fa2f401dcb1d3c38b9a9a9c
5 changes: 3 additions & 2 deletions lib/matplotlib/transforms.py
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Expand Up @@ -35,7 +35,6 @@
# `np.minimum` instead of the builtin `min`, and likewise for `max`. This is
# done so that `nan`s are propagated, instead of being silently dropped.

import copy
import functools
import itertools
import textwrap
Expand Down Expand Up @@ -139,7 +138,9 @@ def __setstate__(self, data_dict):
for k, v in self._parents.items() if v is not None}

def __copy__(self):
other = copy.copy(super())
cls = type(self)
other = cls.__new__(cls)
other.__dict__.update(self.__dict__)
# If `c = a + b; a1 = copy(a)`, then modifications to `a1` do not
# propagate back to `c`, i.e. we need to clear the parents of `a1`.
other._parents = {}
Expand Down