cvs-py-rel2_1 (Rev 1.29 - 1.33) merge

Merged the following py-cvs revs without conflict:
1.29 Reduce copyright text output at startup
1.30 Delay setting sys.args until Tkinter is fully initialized
1.31 Whitespace normalization
1.32 Turn syntax warning into error when interactive
1.33 Fix warning initialization bug

Note that module is extensively modified wrt py-cvs

Lib/idlelib/PyShell.py

@@ -27,6 +27,7 @@
 import getopt
 import re
 import protocol
+import warnings
 
 import linecache
 from code import InteractiveInterpreter
@@ -146,7 +147,7 @@ def recolorize_main(self):
         "stderr": cconf.getcolor("stderr"),
         "console": cconf.getcolor("console"),
         "ERROR": cconf.getcolor("ERROR"),
-	None: cconf.getcolor("normal"),
+        None: cconf.getcolor("normal"),
     })
 
 
@@ -178,6 +179,7 @@ def __init__(self, tkconsole):
         self.tkconsole = tkconsole
         locals = sys.modules['__main__'].__dict__
         InteractiveInterpreter.__init__(self, locals=locals)
+        self.save_warnings_filters = None
 
     gid = 0
 
@@ -202,7 +204,14 @@ def runsource(self, source):
         # Extend base class to stuff the source in the line cache first
         filename = self.stuffsource(source)
         self.more = 0
-        return InteractiveInterpreter.runsource(self, source, filename)
+        self.save_warnings_filters = warnings.filters[:]
+        warnings.filterwarnings(action="error", category=SyntaxWarning)
+        try:
+            return InteractiveInterpreter.runsource(self, source, filename)
+        finally:
+            if self.save_warnings_filters is not None:
+                warnings.filters[:] = self.save_warnings_filters
+                self.save_warnings_filters = None
 
     def stuffsource(self, source):
         # Stuff source in the filename cache
@@ -271,6 +280,9 @@ def getdebugger(self):
 
     def runcode(self, code):
         # Override base class method
+        if self.save_warnings_filters is not None:
+            warnings.filters[:] = self.save_warnings_filters
+            self.save_warnings_filters = None
         debugger = self.debugger
         try:
             self.tkconsole.beginexecuting()
@@ -451,10 +463,13 @@ def ispythonsource(self, filename):
     def short_title(self):
         return self.shell_title
 
+    COPYRIGHT = \
+              'Type "copyright", "credits" or "license" for more information.'
+
     def begin(self):
         self.resetoutput()
         self.write("Python %s on %s\n%s\nIDLE %s -- press F1 for help\n" %
-                   (sys.version, sys.platform, sys.copyright,
+                   (sys.version, sys.platform, self.COPYRIGHT,
                     idlever.IDLE_VERSION))
         try:
             sys.ps1
@@ -790,12 +805,6 @@ def main( self, argv ):
     
         if noshell: edit=1
     
-        if not edit:
-            if cmd:
-                sys.argv = ["-c"] + args
-            else:
-                sys.argv = args or [""]
-    
         for i in range(len(sys.path)):
             sys.path[i] = os.path.abspath(sys.path[i])
     
@@ -813,7 +822,7 @@ def main( self, argv ):
                 sys.path.insert(0, dir)
 
         global flist, root
-        root = Tk()
+        root = Tk(className="Idle")
         fixwordbreaks(root)
         root.withdraw()
         flist = PyShellFileList(root)
@@ -823,7 +832,12 @@ def main( self, argv ):
                 flist.open(filename)
             if not args:
                 flist.new()
-    
+        else:
+            if cmd:
+                sys.argv = ["-c"] + args
+            else:
+                sys.argv = args or [""]
+
         #dbg=OnDemandOutputWindow(flist)
         #dbg.set_title('Internal IDLE Problem')
         #sys.stdout = PseudoFile(dbg,['stdout'])