- major refactoring/inlining to loader.instances(), though not really

any speed improvements :(.   code is in a much better place to be run into
C, however
- The ``proc()`` callable passed to the ``create_row_processor()``
method of custom :class:`.Bundle` classes now accepts only a single
"row" argument.
- Deprecated event hooks removed:  ``populate_instance``,
``create_instance``, ``translate_row``, ``append_result``
- the getter() idea is somewhat restored; see ref #3175

2 files changed, 9 insertions, 1 deletions

diff --git a/lib/sqlalchemy/util/__init__.py b/lib/sqlalchemy/util/__init__.py
index d882c2656..b92beac96 100644
--- a/lib/sqlalchemy/util/__init__.py
+++ b/lib/sqlalchemy/util/__init__.py
@@ -34,7 +34,7 @@ from .langhelpers import iterate_attributes, class_hierarchy, \
     classproperty, set_creation_order, warn_exception, warn, NoneType,\
     constructor_copy, methods_equivalent, chop_traceback, asint,\
     generic_repr, counter, PluginLoader, hybridmethod, safe_reraise,\
-    get_callable_argspec, only_once
+    get_callable_argspec, only_once, attrsetter
 
 from .deprecations import warn_deprecated, warn_pending_deprecation, \
     deprecated, pending_deprecation, inject_docstring_text
diff --git a/lib/sqlalchemy/util/langhelpers.py b/lib/sqlalchemy/util/langhelpers.py
index 828e8f1f3..f0dd7a08e 100644
--- a/lib/sqlalchemy/util/langhelpers.py
+++ b/lib/sqlalchemy/util/langhelpers.py
@@ -1249,3 +1249,11 @@ def chop_traceback(tb, exclude_prefix=_UNITTEST_RE, exclude_suffix=_SQLA_RE):
     return tb[start:end + 1]
 
 NoneType = type(None)
+
+def attrsetter(attrname):
+    code = \
+        "def set(obj, value):"\
+        "    obj.%s = value" % attrname
+    env = locals().copy()
+    exec(code, env)
+    return env['set']