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| author | Xiang Zhang <angwerzx@126.com> | 2017-03-08 03:04:24 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-03-08 03:04:24 (GMT) |
| commit | d5d3249e8a37936d32266fa06ac20017307a1f70 (patch) | |
| tree | 93cc04b3e6be8772aa9afec42ed4765505f5ebd8 /Lib/_collections_abc.py | |
| parent | 8f6b344d368c15c3fe56c65c2f2776e7766fef55 (diff) | |
| download | cpython-d5d3249e8a37936d32266fa06ac20017307a1f70.zip cpython-d5d3249e8a37936d32266fa06ac20017307a1f70.tar.gz cpython-d5d3249e8a37936d32266fa06ac20017307a1f70.tar.bz2 | |
bpo-26915: Test identity first in membership operation in index() and count() methods of collections.abc.Sequence (GH-503)
Diffstat (limited to 'Lib/_collections_abc.py')
| -rw-r--r-- | Lib/_collections_abc.py | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Lib/_collections_abc.py b/Lib/_collections_abc.py index b172f3f..005d884 100644 --- a/Lib/_collections_abc.py +++ b/Lib/_collections_abc.py @@ -908,7 +908,8 @@ class Sequence(Reversible, Collection): i = start while stop is None or i < stop: try: - if self[i] == value: + v = self[i] + if v is value or v == value: return i except IndexError: break @@ -917,7 +918,7 @@ class Sequence(Reversible, Collection): def count(self, value): 'S.count(value) -> integer -- return number of occurrences of value' - return sum(1 for v in self if v == value) + return sum(1 for v in self if v is value or v == value) Sequence.register(tuple) Sequence.register(str) |