--- a/Objects/complexobject.c	Sat Dec 04 13:14:29 2010 +0000
+++ b/Objects/complexobject.c	Sat Dec 04 13:27:34 2010 +0000
@@ -324,10 +324,11 @@
     op->ob_type->tp_free(op);
 }
 
-
 static PyObject *
-complex_format(PyComplexObject *v, int precision, char format_code)
+complex_repr(PyComplexObject *v)
 {
+    int precision = 0;
+    char format_code = 'r';
     PyObject *result = NULL;
     Py_ssize_t len;
 
@@ -344,6 +345,8 @@
     char *tail = "";
 
     if (v->cval.real == 0. && copysign(1.0, v->cval.real)==1.0) {
+        /* Real part is +0: just output the imaginary part and do not
+           include parens. */
         re = "";
         im = PyOS_double_to_string(v->cval.imag, format_code,
                                    precision, 0, NULL);
@@ -352,7 +355,8 @@
             goto done;
         }
     } else {
-        /* Format imaginary part with sign, real part without */
+        /* Format imaginary part with sign, real part without. Include
+           parens in the result. */
         pre = PyOS_double_to_string(v->cval.real, format_code,
                                     precision, 0, NULL);
         if (!pre) {
@@ -371,7 +375,7 @@
         tail = ")";
     }
     /* Alloc the final buffer. Add one for the "j" in the format string,
-       and one for the trailing zero. */
+       and one for the trailing zero byte. */
     len = strlen(lead) + strlen(re) + strlen(im) + strlen(tail) + 2;
     buf = PyMem_Malloc(len);
     if (!buf) {
@@ -388,12 +392,6 @@
     return result;
 }
 
-static PyObject *
-complex_repr(PyComplexObject *v)
-{
-    return complex_format(v, 0, 'r');
-}
-
 static Py_hash_t
 complex_hash(PyComplexObject *v)
 {