- Enhanced the instrumentation in the ORM to support

    Py3K's new argument style of "required kw arguments",
    i.e. fn(a, b, *, c, d), fn(a, b, *args, c, d).
    Argument signatures of mapped object's __init__
    method will be preserved, including required kw rules.
    [ticket:2237]

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/sqlalchemy/orm/instrumentation.py b/lib/sqlalchemy/orm/instrumentation.py
index f14b75253..89e9ae8ae 100644
--- a/lib/sqlalchemy/orm/instrumentation.py
+++ b/lib/sqlalchemy/orm/instrumentation.py
@@ -656,6 +656,7 @@ def __init__(%(apply_pos)s):
 
     # Py3K
     #func_defaults = getattr(original__init__, '__defaults__', None)
+    #func_kw_defaults = getattr(original__init__, '__kwdefaults__', None)
     # Py2K
     func = getattr(original__init__, 'im_func', original__init__)
     func_defaults = getattr(func, 'func_defaults', None)
@@ -667,4 +668,7 @@ def __init__(%(apply_pos)s):
     __init__.__doc__ = original__init__.__doc__
     if func_defaults:
         __init__.func_defaults = func_defaults
+    # Py3K
+    #if func_kw_defaults:
+    #    __init__.__kwdefaults__ = func_kw_defaults
     return __init__