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Fix Path deepcopy signature #6877

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Merged
tacaswell merged 1 commit into from
Aug 3, 2016
Merged

Fix Path deepcopy signature #6877

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8 changes: 6 additions & 2 deletions lib/matplotlib/path.py
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Original file line number Diff line number Diff line change
Expand Up @@ -297,13 +297,17 @@ def __copy__(self):

copy = __copy__

def __deepcopy__(self):
def __deepcopy__(self, memo=None):
"""
Returns a deepcopy of the `Path`. The `Path` will not be
readonly, even if the source `Path` is.
"""
try:
codes = self.codes.copy()
except AttributeError:
codes = None
return self.__class__(
self.vertices.copy(), self.codes.copy(),
self.vertices.copy(), codes,
_interpolation_steps=self._interpolation_steps)

deepcopy = __deepcopy__
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11 changes: 11 additions & 0 deletions lib/matplotlib/tests/test_path.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
from __future__ import (absolute_import, division, print_function,
unicode_literals)
import copy

import six

Expand Down Expand Up @@ -172,6 +173,16 @@ def test_path_to_polygons():
assert_array_equal(p.to_polygons(closed_only=False), [data])


def test_path_deepcopy():
# Should not raise any error
verts = [[0, 0], [1, 1]]
codes = [Path.MOVETO, Path.LINETO]
path1 = Path(verts)
path2 = Path(verts, codes)
copy.deepcopy(path1)
copy.deepcopy(path2)


if __name__ == '__main__':
import nose
nose.runmodule(argv=['-s', '--with-doctest'], exit=False)
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