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authormike bayer <mike_mp@zzzcomputing.com>2020-01-07 01:53:34 +0000
committerGerrit Code Review <gerrit@bbpush.zzzcomputing.com>2020-01-07 01:53:34 +0000
commit84cb9d1f0a3f91fb5e3d4ece78b9ef94d1e5d826 (patch)
tree29ac3a2c6afd6bf14c84358172c4de968ab06304 /lib/sqlalchemy/orm/attributes.py
parent463a5f2e29ca28e53b5d19ac2b63acf39438ce87 (diff)
parent217948f5c79e03956de998af86fef77ebc3edb76 (diff)
downloadsqlalchemy-84cb9d1f0a3f91fb5e3d4ece78b9ef94d1e5d826.tar.gz
Merge "Enable F821"
Diffstat (limited to 'lib/sqlalchemy/orm/attributes.py')
-rw-r--r--lib/sqlalchemy/orm/attributes.py4
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/sqlalchemy/orm/attributes.py b/lib/sqlalchemy/orm/attributes.py
index 1805bf8db..66a18da99 100644
--- a/lib/sqlalchemy/orm/attributes.py
+++ b/lib/sqlalchemy/orm/attributes.py
@@ -1586,10 +1586,8 @@ def backref_listeners(attribute, key, uselist):
_NO_HISTORY = util.symbol("NO_HISTORY")
_NO_STATE_SYMBOLS = frozenset([id(PASSIVE_NO_RESULT), id(NO_VALUE)])
-History = util.namedtuple("History", ["added", "unchanged", "deleted"])
-
-class History(History):
+class History(util.namedtuple("History", ["added", "unchanged", "deleted"])):
"""A 3-tuple of added, unchanged and deleted values,
representing the changes which have occurred on an instrumented
attribute.