Added a sleep as suggested by gael, so will not eat all cpu on raw_input

request...

IPython/gui/wx/ipython_view.py

@@ -33,6 +33,8 b' from StringIO import StringIO'
 import sys
 import codecs
 import locale
+import time
+
 for enc in (locale.getpreferredencoding(),
             sys.getfilesystemencoding(),
             sys.getdefaultencoding()):
@@ -77,6 +79,7 b' class WxNonBlockingIPShell(NonBlockingIPShell):'
         wx.CallAfter(self._yesNoBox,  prompt)
         while self.answer is None:
             wx.Yield()
+            time.sleep(.1)
         return self.answer
         
     def _yesNoBox(self, prompt):