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!B [#7852] fix for _rrule maximum recursion depth exceeded on multiprocessing usage #7854

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Merged
merged 5 commits into from
Jan 20, 2017
Merged

!B [#7852] fix for _rrule maximum recursion depth exceeded on multiprocessing usage #7854

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c189bf9
!B [#7852] fix for _rrule maximum recursion depth exceeded
ahcub Jan 17, 2017
4e08061
!U add test for rrulewrapper pickling
ahcub Jan 19, 2017
4630911
!U fix the test to check the error is not raised
ahcub Jan 19, 2017
6bc363b
!U remove the redundant whitespace
ahcub Jan 19, 2017
17ba26c
!U remove redundant whitespaces
ahcub Jan 19, 2017
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2 changes: 2 additions & 0 deletions lib/matplotlib/dates.py
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Original file line number Diff line number Diff line change
Expand Up @@ -711,6 +711,8 @@ def set(self, **kwargs):
self._rrule = rrule(**self._construct)

def __getattr__(self, name):
if name in ['__getstate__', '__setstate__']:
return object.__getattr__(self, name)
if name in self.__dict__:
return self.__dict__[name]
return getattr(self._rrule, name)
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10 changes: 10 additions & 0 deletions lib/matplotlib/tests/test_pickle.py
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Expand Up @@ -11,6 +11,7 @@
import numpy as np

from matplotlib.testing.decorators import cleanup, image_comparison
from matplotlib.dates import rrulewrapper
import matplotlib.pyplot as plt
import matplotlib.transforms as mtransforms

Expand Down Expand Up @@ -270,6 +271,15 @@ def test_transform():
assert_equal(obj.wrapper.output_dims, obj.composite.output_dims)


def test_rrulewrapper():
r = rrulewrapper(2)
try:
pickle.loads(pickle.dumps(r))
except RecursionError:
print('rrulewrapper pickling test failed')
raise


if __name__ == '__main__':
import nose
nose.runmodule(argv=['-s'])