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| author | Raymond Hettinger <python@rcn.com> | 2009-01-21 20:31:50 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2009-01-21 20:31:50 (GMT) |
| commit | 4571f347f94a969a21a94d29b40a18a7b4dcd21f (patch) | |
| tree | c3f86d162dc8fbb104c511da6083c9ff251edb13 /Lib/collections.py | |
| parent | 42ffbdb9038facbff1db28042a639611c2618ad0 (diff) | |
| download | cpython-4571f347f94a969a21a94d29b40a18a7b4dcd21f.zip cpython-4571f347f94a969a21a94d29b40a18a7b4dcd21f.tar.gz cpython-4571f347f94a969a21a94d29b40a18a7b4dcd21f.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 a853076..eb13f4d2 100644 --- a/Lib/collections.py +++ b/Lib/collections.py @@ -312,8 +312,8 @@ class Counter(dict): if not isinstance(other, Counter): return NotImplemented result = Counter() - for elem, count in self.iteritems(): - newcount = count - other[elem] + for elem in set(self) | set(other): + newcount = self[elem] - other[elem] if newcount > 0: result[elem] = newcount return result |