Patch from Georg Brandl: Fix co_lineno of decorated function and class objects. If you see an error in test_inspect please delete all pyc files.

Lib/test/test_inspect.py

@@ -239,7 +239,7 @@ class TestDecorators(GetSourceBase):
     fodderFile = mod2
 
     def test_wrapped_decorator(self):
-        self.assertSourceEqual(mod2.wrapped, 16, 17)
+        self.assertSourceEqual(mod2.wrapped, 14, 17)
 
     def test_replacing_decorator(self):
         self.assertSourceEqual(mod2.gone, 9, 10)

Misc/NEWS

@@ -363,6 +363,8 @@ Core and Builtins
 Library
 -------
 
+- inspect.getsource() includes the decorators again.
+
 - Issue #1916. Added isgenerator() and isgeneratorfunction() to inspect.py.
 
 - #1224: Fixed bad url parsing when path begins with double slash.

Python/ast.c

@@ -1015,6 +1015,12 @@ ast_for_decorated(struct compiling *c, const node *n)
     } else if (TYPE(CHILD(n, 1)) == classdef) {
       thing = ast_for_classdef(c, CHILD(n, 1), decorator_seq);
     }
+    /* we count the decorators in when talking about the class' or
+     * function's line number */
+    if (thing) {
+        thing->lineno = LINENO(n);
+        thing->col_offset = n->n_col_offset;
+    }
     return thing;
 }