1. Catch TypeError exception when writing to OutputWindow

2. PyShell: shell isn't working due to encoding issues.  Temporarily direct
   exceptions to the terminal.  Also, trap exceptions occurring during write()
   instead of passing.

Checking (2)  in temporarily to aid finding the encoding problem in
IOBinding.py

Lib/idlelib/OutputWindow.py

@@ -40,6 +40,8 @@ class OutputWindow(EditorWindow):
         if isinstance(s, str):
             try:
                 s = str(s, IOBinding.encoding)
+            except TypeError:
+                raise
             except UnicodeError:
                 # some other encoding; let Tcl deal with it
                 pass