Index: Parser/myreadline.c
===================================================================
--- Parser/myreadline.c	(revision 79993)
+++ Parser/myreadline.c	(working copy)
@@ -44,8 +44,12 @@
 		(void)(PyOS_InputHook)();
 	errno = 0;
 	p = fgets(buf, len, fp);
-	if (p != NULL)
+	if (p != NULL) {
+		if (feof(fp)) {
+			return -1; /* EOF, but some characters have been read. */
+		}
 		return 0; /* No error */
+	}
 #ifdef MS_WINDOWS
 	/* In the case of a Ctrl+C or some other external event 
 	   interrupting the operation:
@@ -76,7 +80,7 @@
 	}
 #endif /* MS_WINDOWS */
 	if (feof(fp)) {
-		return -1; /* EOF */
+		return -1; /* EOF, no characters have been read. */
 	}
 #ifdef EINTR
 	if (errno == EINTR) {