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| author | Serhiy Storchaka <storchaka@gmail.com> | 2017-04-05 06:37:24 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-04-05 06:37:24 (GMT) |
| commit | 5affd23e6f42125998724787025080a24839266e (patch) | |
| tree | 8b7ca82362e78a32805b117d574082d512251d3c /Lib/_collections_abc.py | |
| parent | 43ba8861e0ad044efafa46a7cc04e12ac5df640e (diff) | |
| download | cpython-5affd23e6f42125998724787025080a24839266e.zip cpython-5affd23e6f42125998724787025080a24839266e.tar.gz cpython-5affd23e6f42125998724787025080a24839266e.tar.bz2 | |
bpo-29762: More use "raise from None". (#569)
This hides unwanted implementation details from tracebacks.
Diffstat (limited to 'Lib/_collections_abc.py')
| -rw-r--r-- | Lib/_collections_abc.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Lib/_collections_abc.py b/Lib/_collections_abc.py index 005d884..e89e84b 100644 --- a/Lib/_collections_abc.py +++ b/Lib/_collections_abc.py @@ -589,7 +589,7 @@ class MutableSet(Set): try: value = next(it) except StopIteration: - raise KeyError + raise KeyError from None self.discard(value) return value @@ -808,7 +808,7 @@ class MutableMapping(Mapping): try: key = next(iter(self)) except StopIteration: - raise KeyError + raise KeyError from None value = self[key] del self[key] return key, value |