=== modified file 'lisp/progmodes/python.el'
--- lisp/progmodes/python.el	2012-06-17 08:53:31 +0000
+++ lisp/progmodes/python.el	2012-06-17 20:30:39 +0000
@@ -1328,6 +1328,15 @@
   :type '(alist string)
   :group 'python)

+(defcustom python-show-process-buffer-on-send nil
+  "Whether or not to show the Python process buffer after sending
+a region to the Python process."
+  :type '(choice (const :tag "No" nil)
+                 (const :tag "In current window" current)
+		 (const :tag "In another window" other))
+  :group 'python
+  :version "24.1")
+
 (defun python-shell-get-process-name (dedicated)
   "Calculate the appropriate process name for inferior Python process.
 If DEDICATED is t and the variable `buffer-file-name' is non-nil
@@ -1592,7 +1601,11 @@
       (comint-send-string process string)
       (when (or (not (string-match "\n$" string))
                 (string-match "\n[ \t].*\n?$" string))
-        (comint-send-string process "\n")))))
+        (comint-send-string process "\n")))
+    (cond ((eq python-show-process-buffer-on-send 'other)
+           (switch-to-buffer-other-window (current-buffer)))
+          ((eq python-show-process-buffer-on-send 'current)
+           (switch-to-buffer (current-buffer))))))

 (defun python-shell-send-string-no-output (string &optional process msg)
   "Send STRING to PROCESS and inhibit output.