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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2011-12-06 13:22:59 -0500 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2011-12-06 13:22:59 -0500 |
| commit | a8dc787ff02490da17e8704ca564bf0c6b46c04d (patch) | |
| tree | 0dcecf3d0622813824398c29b3bf44518adb131a /lib/sqlalchemy/util/_collections.py | |
| parent | b53349a40389b65066fdcdd9572dd8ee052da8ff (diff) | |
| download | sqlalchemy-a8dc787ff02490da17e8704ca564bf0c6b46c04d.tar.gz | |
- [feature] IdentitySet supports the - operator
as the same as difference(), handy when dealing
with Session.dirty etc. [ticket:2301]
Diffstat (limited to 'lib/sqlalchemy/util/_collections.py')
| -rw-r--r-- | lib/sqlalchemy/util/_collections.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqlalchemy/util/_collections.py b/lib/sqlalchemy/util/_collections.py index 3adbf9913..1a965e30d 100644 --- a/lib/sqlalchemy/util/_collections.py +++ b/lib/sqlalchemy/util/_collections.py @@ -376,6 +376,9 @@ class IdentitySet(object): def clear(self): self._members.clear() + def __sub__(self, other): + return self.difference(other) + def __cmp__(self, other): raise TypeError('cannot compare sets using cmp()') |