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| author | Raymond Hettinger <python@rcn.com> | 2009-01-21 20:36:27 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2009-01-21 20:36:27 (GMT) |
| commit | e0d1b9f11fc10cc2fb797606dc55967a66821529 (patch) | |
| tree | 2a8ae4cab2ea1614a2ef2f7f3c6557b08862fd20 /Lib/collections.py | |
| parent | 63b3a97a2a7277fb05e2aeaee9890a25fb385702 (diff) | |
| download | cpython-e0d1b9f11fc10cc2fb797606dc55967a66821529.zip cpython-e0d1b9f11fc10cc2fb797606dc55967a66821529.tar.gz cpython-e0d1b9f11fc10cc2fb797606dc55967a66821529.tar.bz2 | |
Simplify explanation of multiset operations by removing restrictions on negative inputs.
Diffstat (limited to 'Lib/collections.py')
| -rw-r--r-- | Lib/collections.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Lib/collections.py b/Lib/collections.py index 45558f9..232c772 100644 --- a/Lib/collections.py +++ b/Lib/collections.py @@ -314,8 +314,8 @@ class Counter(dict): if not isinstance(other, Counter): return NotImplemented result = Counter() - for elem, count in self.items(): - newcount = count - other[elem] + for elem in set(self) | set(other): + newcount = self[elem] - other[elem] if newcount > 0: result[elem] = newcount return result |