code object support in exec statement

Cython/Compiler/Builtin.py

@@ -182,27 +182,34 @@ static PyObject* __Pyx_PyRun(PyObject* o, PyObject* globals, PyObject* locals) {
         globals = locals;
     }
 
-    if (PyUnicode_Check(o)) {
-        s = PyUnicode_AsUTF8String(o);
-        if (!s) goto bad;
-        o = s;
-    #if PY_MAJOR_VERSION >= 3
-    } else if (!PyBytes_Check(o)) {
-    #else
-    } else if (!PyString_Check(o)) {
-    #endif
-        /* FIXME: support file objects and code objects */
-        PyErr_SetString(PyExc_TypeError,
-            "exec currently requires a string as code input.");
-        goto bad;
+    if (PyDict_GetItemString(globals, "__builtins__") == NULL) {
+	PyDict_SetItemString(globals, "__builtins__", PyEval_GetBuiltins());
+    }
+    
+    if (PyCode_Check(o)) {
+	result = PyEval_EvalCode((PyCodeObject *)o, globals, locals);
+    }
+    else {
+	if (PyUnicode_Check(o)) {
+    	    s = PyUnicode_AsUTF8String(o);
+    	    if (!s) goto bad;
+    	    o = s;
+	#if PY_MAJOR_VERSION >= 3
+	} else if (!PyBytes_Check(o)) {
+	#else
+	} else if (!PyString_Check(o)) {
+	#endif
+    	    PyErr_SetString(PyExc_TypeError,
+        	"exec: arg 1 must be string, bytes or code object");
+    	    goto bad;
+	}
+	#if PY_MAJOR_VERSION >= 3
+	code = PyBytes_AS_STRING(o);
+	#else
+	code = PyString_AS_STRING(o);
+	#endif
+	result = PyRun_String(code, Py_file_input, globals, locals);
     }
-
-    #if PY_MAJOR_VERSION >= 3
-    code = PyBytes_AS_STRING(o);
-    #else
-    code = PyString_AS_STRING(o);
-    #endif
-    result = PyRun_String(code, Py_file_input, globals, locals);
 
     Py_XDECREF(s);
     return result;