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authorSerhiy Storchaka <storchaka@gmail.com>2017-04-05 06:37:24 (GMT)
committerGitHub <noreply@github.com>2017-04-05 06:37:24 (GMT)
commit5affd23e6f42125998724787025080a24839266e (patch)
tree8b7ca82362e78a32805b117d574082d512251d3c /Lib/copyreg.py
parent43ba8861e0ad044efafa46a7cc04e12ac5df640e (diff)
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bpo-29762: More use "raise from None". (#569)
This hides unwanted implementation details from tracebacks.
Diffstat (limited to 'Lib/copyreg.py')
-rw-r--r--Lib/copyreg.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/copyreg.py b/Lib/copyreg.py
index 67f5bb0..ed29d71 100644
--- a/Lib/copyreg.py
+++ b/Lib/copyreg.py
@@ -70,7 +70,7 @@ def _reduce_ex(self, proto):
except AttributeError:
if getattr(self, "__slots__", None):
raise TypeError("a class that defines __slots__ without "
- "defining __getstate__ cannot be pickled")
+ "defining __getstate__ cannot be pickled") from None
try:
dict = self.__dict__
except AttributeError: