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Thu Aug 14 12:10:58 EDT 2003 · https://mail.python.org/pipermail/python-dev/2003-August/037620.html

I just realized that filter(bool, ...) is the same as filter(None, ...).
Anyone object to optimizing the 'bool' case?  I think using 'bool' is
much clearer than 'None'.

  Neil

Index: Python/bltinmodule.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Python/bltinmodule.c,v
retrieving revision 2.293
diff -u -r2.293 bltinmodule.c

--- Python/bltinmodule.c	2 Aug 2003 07:42:56 -0000	2.293
+++ Python/bltinmodule.c	14 Aug 2003 17:49:26 -0000
@@ -197,7 +197,7 @@
 			break;
 		}
 
-		if (func == Py_None) {
+		if (func == Py_None || func == (PyObject *)&PyBool_Type) {
 			ok = PyObject_IsTrue(item);
 		}
 		else {



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[Python-Dev] filter(bool, ...)