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

Lib/idlelib/PyShell.py

@@ -825,7 +825,7 @@ class PyShell(OutputWindow):
         self.console = PseudoFile(self, "console", IOBinding.encoding)
         if not use_subprocess:
             sys.stdout = self.stdout
-            sys.stderr = self.stderr
+###            sys.stderr = self.stderr # Don't redirect exceptions, pyshell NG
             sys.stdin = self
         #
         self.history = self.History(self.text)
@@ -1214,7 +1214,8 @@ class PyShell(OutputWindow):
             OutputWindow.write(self, s, tags, "iomark")
             self.text.mark_gravity("iomark", "left")
         except:
-            pass
+            raise ###pass  # ### 11Aug07 KBK if we are expecting exceptions
+                           # let's find out what they are and be specific.
         if self.canceled:
             self.canceled = 0
             if not use_subprocess: