Make filter(bool, ...) as fast as filter(None, ...).

nascheme · nascheme · commit 689735562d45 · 2003-08-14T20:37:34.000Z
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
@@ -197,7 +197,7 @@ builtin_filter(PyObject *self, PyObject *args)
 			break;
 		}
 
-		if (func == Py_None) {
+		if (func == (PyObject *)&PyBool_Type || func == Py_None) {
 			ok = PyObject_IsTrue(item);
 		}
 		else {

Original file line number	Diff line number	Diff line change
`@@ -197,7 +197,7 @@ builtin_filter(PyObject self, PyObject args)`
`197`	`197`	`break;`
`198`	`198`	`}`
`199`	`199`
`200`		`- if (func == Py_None) {`
	`200`	`+ if (func == (PyObject *)&PyBool_Type \|\| func == Py_None) {`
`201`	`201`	`ok = PyObject_IsTrue(item);`
`202`	`202`	`}`
`203`	`203`	`else {`