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authorSerhiy Storchaka <storchaka@gmail.com>2017-04-05 09:37:24 +0300
committerGitHub <noreply@github.com>2017-04-05 09:37:24 +0300
commit5affd23e6f42125998724787025080a24839266e (patch)
tree8b7ca82362e78a32805b117d574082d512251d3c /Lib/sysconfig.py
parentbpo-29549: Fixes docstring for str.index (#256) (diff)
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bpo-29762: More use "raise from None". (#569)
This hides unwanted implementation details from tracebacks.
Diffstat (limited to 'Lib/sysconfig.py')
-rw-r--r--Lib/sysconfig.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/sysconfig.py b/Lib/sysconfig.py
index 9314e71a2f8..ed0a34d662f 100644
--- a/Lib/sysconfig.py
+++ b/Lib/sysconfig.py
@@ -147,7 +147,7 @@ def _subst_vars(s, local_vars):
try:
return s.format(**os.environ)
except KeyError as var:
- raise AttributeError('{%s}' % var)
+ raise AttributeError('{%s}' % var) from None
def _extend_dict(target_dict, other_dict):
target_keys = target_dict.keys()