@@ -1914,20 +1914,28 @@ class so far, an alias named ``get_alias`` will be defined; the same will
19141914if cls is None :# Return the actual class decorator.
19151915return functools .partial (_define_aliases ,alias_d )
19161916
1917- def make_alias (name ):# Enforce a closure over *name*.
1918- def method (self ,* args ,** kwargs ):
1919- return getattr (self ,name )(* args ,** kwargs )
1920- return method
1917+ def make_alias (method ):
1918+ import inspect
1919+ args = str (inspect .signature (method ))[1 :- 1 ]# remove parentheses
1920+ if args [:6 ]== 'self, ' :
1921+ call_args = args [6 :]
1922+ elif args == 'self' :
1923+ call_args = ''
1924+ else :
1925+ raise RuntimeError ('Unexpected signature: %s' % args )
1926+ alias_method = eval ('lambda {}: self.{}({})' .format (
1927+ args ,method .__name__ ,call_args ))
1928+ alias_method .__doc__ = "Alias for `{}`." .format (method .__name__ )
1929+ return alias_method
19211930
19221931for prop ,aliases in alias_d .items ():
19231932exists = False
19241933for prefix in ["get_" ,"set_" ]:
19251934if prefix + prop in vars (cls ):
19261935exists = True
19271936for alias in aliases :
1928- method = make_alias (prefix + prop )
1937+ method = make_alias (getattr ( cls , prefix + prop ) )
19291938method .__name__ = prefix + alias
1930- method .__doc__ = "Alias for `{}`." .format (prefix + prop )
19311939setattr (cls ,prefix + alias ,method )
19321940if not exists :
19331941raise ValueError (