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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2022-03-25 17:08:48 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2022-03-30 14:04:52 -0400 |
| commit | 4e754a8914a1c2c16c97bdf363d2e24bfa823730 (patch) | |
| tree | db723242b4e4c0d4c7f15c167857dd79fdfa6ccb /lib/sqlalchemy/util/langhelpers.py | |
| parent | dba480ebaf89c0b5ea787661583de9da3928920f (diff) | |
| download | sqlalchemy-4e754a8914a1c2c16c97bdf363d2e24bfa823730.tar.gz | |
pep-484: the pep-484ening, SQL part three
hitting DML which is causing us to open up the
ColumnCollection structure a bit, as we do put anonymous
column expressions with None here. However, we still want
Table /TableClause to have named column collections that
don't return None, so parametrize the "key" in this
collection also.
* rename some "immutable" elements to "readonly". we change
the contents of immutablecolumncollection underneath, so it's
not "immutable"
Change-Id: I2593995a4e5c6eae874bed5bf76117198be8ae97
Diffstat (limited to 'lib/sqlalchemy/util/langhelpers.py')
| -rw-r--r-- | lib/sqlalchemy/util/langhelpers.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/sqlalchemy/util/langhelpers.py b/lib/sqlalchemy/util/langhelpers.py index 8cf50c724..9e1194e23 100644 --- a/lib/sqlalchemy/util/langhelpers.py +++ b/lib/sqlalchemy/util/langhelpers.py @@ -1248,6 +1248,7 @@ if TYPE_CHECKING: # of a property, meaning assignment needs to be disallowed ro_memoized_property = property ro_non_memoized_property = property + else: memoized_property = ro_memoized_property = _memoized_property non_memoized_property = ro_non_memoized_property = _non_memoized_property @@ -1348,6 +1349,12 @@ class HasMemoized: return update_wrapper(oneshot, fn) +if TYPE_CHECKING: + HasMemoized_ro_memoized_attribute = property +else: + HasMemoized_ro_memoized_attribute = HasMemoized.memoized_attribute + + class MemoizedSlots: """Apply memoized items to an object using a __getattr__ scheme. |