This commit was manufactured by cvs2svn to create branch

'release22-maint'.

1 files changed, 0 insertions, 903 deletions

diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
deleted file mode 100644
index 5037806..0000000
--- a/Lib/idlelib/PyShell.py
+++ /dev/null
@@ -1,903 +0,0 @@
-#! /usr/bin/env python
-
-# changes by dscherer@cmu.edu
-
-#     The main() function has been replaced by a whole class, in order to
-#     address the constraint that only one process can sit on the port
-#     hard-coded into the loader.
-
-#     It attempts to load the RPC protocol server and publish itself.  If
-#     that fails, it assumes that some other copy of IDLE is already running
-#     on the port and attempts to contact it.  It then uses the RPC mechanism
-#     to ask that copy to do whatever it was instructed (via the command
-#     line) to do.  (Think netscape -remote).  The handling of command line
-#     arguments for remotes is still very incomplete.
-
-#     Default behavior (no command line options) is to open an editor window
-#     instead of starting the Python Shell.  However, if called as
-#     Pyshell.main(0), the Shell will be started instead of the editor window.
-
-#     In the default editor mode, if files are specified, they are opened.
-
-#     If any command line options are specified, a shell does appear, and if
-#     the -e option is used, both a shell and an editor window open.
-
-import os
-import spawn
-import sys
-import string
-import getopt
-import re
-import protocol
-import warnings
-
-import linecache
-from code import InteractiveInterpreter
-
-from Tkinter import *
-import tkMessageBox
-
-from EditorWindow import EditorWindow, fixwordbreaks
-from FileList import FileList
-from ColorDelegator import ColorDelegator
-from UndoDelegator import UndoDelegator
-from OutputWindow import OutputWindow, OnDemandOutputWindow
-from IdleConf import idleconf
-from configHandler import idleConf
-import idlever
-
-# We need to patch linecache.checkcache, because we don't want it
-# to throw away our <pyshell#...> entries.
-# Rather than repeating its code here, we save those entries,
-# then call the original function, and then restore the saved entries.
-def linecache_checkcache(orig_checkcache=linecache.checkcache):
-    cache = linecache.cache
-    save = {}
-    for filename in cache.keys():
-        if filename[:1] + filename[-1:] == '<>':
-            save[filename] = cache[filename]
-    orig_checkcache()
-    cache.update(save)
-linecache.checkcache = linecache_checkcache
-
-
-# Note: <<newline-and-indent>> event is defined in AutoIndent.py
-
-#$ event <<plain-newline-and-indent>>
-#$ win <Control-j>
-#$ unix <Control-j>
-
-#$ event <<beginning-of-line>>
-#$ win <Control-a>
-#$ win <Home>
-#$ unix <Control-a>
-#$ unix <Home>
-
-#$ event <<history-next>>
-#$ win <Alt-n>
-#$ unix <Alt-n>
-
-#$ event <<history-previous>>
-#$ win <Alt-p>
-#$ unix <Alt-p>
-
-#$ event <<interrupt-execution>>
-#$ win <Control-c>
-#$ unix <Control-c>
-
-#$ event <<end-of-file>>
-#$ win <Control-d>
-#$ unix <Control-d>
-
-#$ event <<open-stack-viewer>>
-
-#$ event <<toggle-debugger>>
-
-
-class PyShellEditorWindow(EditorWindow):
-
-    # Regular text edit window when a shell is present
-    # XXX ought to merge with regular editor window
-
-    def __init__(self, *args):
-        apply(EditorWindow.__init__, (self,) + args)
-        self.text.bind("<<set-breakpoint-here>>", self.set_breakpoint_here)
-        self.text.bind("<<open-python-shell>>", self.flist.open_shell)
-
-    rmenu_specs = [
-        ("Set breakpoint here", "<<set-breakpoint-here>>"),
-    ]
-
-    def set_breakpoint_here(self, event=None):
-        if not self.flist.pyshell or not self.flist.pyshell.interp.debugger:
-            self.text.bell()
-            return
-        self.flist.pyshell.interp.debugger.set_breakpoint_here(self)
-
-
-class PyShellFileList(FileList):
-
-    # File list when a shell is present
-
-    EditorWindow = PyShellEditorWindow
-
-    pyshell = None
-
-    def open_shell(self, event=None):
-        if self.pyshell:
-            self.pyshell.wakeup()
-        else:
-            self.pyshell = PyShell(self)
-            self.pyshell.begin()
-        return self.pyshell
-
-
-class ModifiedColorDelegator(ColorDelegator):
-
-    # Colorizer for the shell window itself
-
-    def recolorize_main(self):
-        self.tag_remove("TODO", "1.0", "iomark")
-        self.tag_add("SYNC", "1.0", "iomark")
-        ColorDelegator.recolorize_main(self)
-
-    tagdefs = ColorDelegator.tagdefs.copy()
-    theme = idleConf.GetOption('main','Theme','name')
-    tagdefs.update({
-
-        "stdin": idleConf.GetHighlight(theme, "stdin"),
-        "stdout": idleConf.GetHighlight(theme, "stdout"),
-        "stderr": idleConf.GetHighlight(theme, "stderr"),
-        "console": idleConf.GetHighlight(theme, "console"),
-        "ERROR": idleConf.GetHighlight(theme, "error"),
-        None: idleConf.GetHighlight(theme, "normal"),
-    })
-
-
-class ModifiedUndoDelegator(UndoDelegator):
-
-    # Forbid insert/delete before the I/O mark
-
-    def insert(self, index, chars, tags=None):
-        try:
-            if self.delegate.compare(index, "<", "iomark"):
-                self.delegate.bell()
-                return
-        except TclError:
-            pass
-        UndoDelegator.insert(self, index, chars, tags)
-
-    def delete(self, index1, index2=None):
-        try:
-            if self.delegate.compare(index1, "<", "iomark"):
-                self.delegate.bell()
-                return
-        except TclError:
-            pass
-        UndoDelegator.delete(self, index1, index2)
-
-class ModifiedInterpreter(InteractiveInterpreter):
-
-    def __init__(self, tkconsole):
-        self.tkconsole = tkconsole
-        locals = sys.modules['__main__'].__dict__
-        InteractiveInterpreter.__init__(self, locals=locals)
-        self.save_warnings_filters = None
-
-    gid = 0
-
-    def execsource(self, source):
-        # Like runsource() but assumes complete exec source
-        filename = self.stuffsource(source)
-        self.execfile(filename, source)
-
-    def execfile(self, filename, source=None):
-        # Execute an existing file
-        if source is None:
-            source = open(filename, "r").read()
-        try:
-            code = compile(source, filename, "exec")
-        except (OverflowError, SyntaxError):
-            self.tkconsole.resetoutput()
-            InteractiveInterpreter.showsyntaxerror(self, filename)
-        else:
-            self.runcode(code)
-
-    def runsource(self, source):
-        # Extend base class to stuff the source in the line cache first
-        filename = self.stuffsource(source)
-        self.more = 0
-        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
-        filename = "<pyshell#%d>" % self.gid
-        self.gid = self.gid + 1
-        lines = string.split(source, "\n")
-        linecache.cache[filename] = len(source)+1, 0, lines, filename
-        return filename
-
-    def showsyntaxerror(self, filename=None):
-        # Extend base class to color the offending position
-        # (instead of printing it and pointing at it with a caret)
-        text = self.tkconsole.text
-        stuff = self.unpackerror()
-        if not stuff:
-            self.tkconsole.resetoutput()
-            InteractiveInterpreter.showsyntaxerror(self, filename)
-            return
-        msg, lineno, offset, line = stuff
-        if lineno == 1:
-            pos = "iomark + %d chars" % (offset-1)
-        else:
-            pos = "iomark linestart + %d lines + %d chars" % (lineno-1,
-                                                              offset-1)
-        text.tag_add("ERROR", pos)
-        text.see(pos)
-        char = text.get(pos)
-        if char and char in string.letters + string.digits + "_":
-            text.tag_add("ERROR", pos + " wordstart", pos)
-        self.tkconsole.resetoutput()
-        self.write("SyntaxError: %s\n" % str(msg))
-
-    def unpackerror(self):
-        type, value, tb = sys.exc_info()
-        ok = type is SyntaxError
-        if ok:
-            try:
-                msg, (dummy_filename, lineno, offset, line) = value
-            except:
-                ok = 0
-        if ok:
-            return msg, lineno, offset, line
-        else:
-            return None
-
-    def showtraceback(self):
-        # Extend base class method to reset output properly
-        text = self.tkconsole.text
-        self.tkconsole.resetoutput()
-        self.checklinecache()
-        InteractiveInterpreter.showtraceback(self)
-
-    def checklinecache(self):
-        c = linecache.cache
-        for key in c.keys():
-            if key[:1] + key[-1:] != "<>":
-                del c[key]
-
-    debugger = None
-
-    def setdebugger(self, debugger):
-        self.debugger = debugger
-
-    def getdebugger(self):
-        return self.debugger
-
-    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()
-            try:
-                if debugger:
-                    debugger.run(code, self.locals)
-                else:
-                    exec code in self.locals
-            except SystemExit:
-                if tkMessageBox.askyesno(
-                    "Exit?",
-                    "Do you want to exit altogether?",
-                    default="yes",
-                    master=self.tkconsole.text):
-                    raise
-                else:
-                    self.showtraceback()
-                    if self.tkconsole.getvar("<<toggle-jit-stack-viewer>>"):
-                        self.tkconsole.open_stack_viewer()
-            except:
-                self.showtraceback()
-                if self.tkconsole.getvar("<<toggle-jit-stack-viewer>>"):
-                    self.tkconsole.open_stack_viewer()
-
-        finally:
-            self.tkconsole.endexecuting()
-
-    def write(self, s):
-        # Override base class write
-        self.tkconsole.console.write(s)
-
-
-class PyShell(OutputWindow):
-
-    shell_title = "Python Shell"
-
-    # Override classes
-    ColorDelegator = ModifiedColorDelegator
-    UndoDelegator = ModifiedUndoDelegator
-
-    # Override menu bar specs
-    menu_specs = PyShellEditorWindow.menu_specs[:]
-    menu_specs.insert(len(menu_specs)-3, ("debug", "_Debug"))
-
-    # New classes
-    from IdleHistory import History
-
-    def __init__(self, flist=None):
-        self.interp = ModifiedInterpreter(self)
-        if flist is None:
-            root = Tk()
-            fixwordbreaks(root)
-            root.withdraw()
-            flist = PyShellFileList(root)
-
-        OutputWindow.__init__(self, flist, None, None)
-
-        import __builtin__
-        __builtin__.quit = __builtin__.exit = "To exit, type Ctrl-D."
-
-        self.auto = self.extensions["AutoIndent"] # Required extension
-        self.auto.config(usetabs=1, indentwidth=8, context_use_ps1=1)
-
-        text = self.text
-        text.configure(wrap="char")
-        text.bind("<<newline-and-indent>>", self.enter_callback)
-        text.bind("<<plain-newline-and-indent>>", self.linefeed_callback)
-        text.bind("<<interrupt-execution>>", self.cancel_callback)
-        text.bind("<<beginning-of-line>>", self.home_callback)
-        text.bind("<<end-of-file>>", self.eof_callback)
-        text.bind("<<open-stack-viewer>>", self.open_stack_viewer)
-        text.bind("<<toggle-debugger>>", self.toggle_debugger)
-        text.bind("<<open-python-shell>>", self.flist.open_shell)
-        text.bind("<<toggle-jit-stack-viewer>>", self.toggle_jit_stack_viewer)
-
-        self.save_stdout = sys.stdout
-        self.save_stderr = sys.stderr
-        self.save_stdin = sys.stdin
-        sys.stdout = PseudoFile(self, "stdout")
-        sys.stderr = PseudoFile(self, "stderr")
-        sys.stdin = self
-        self.console = PseudoFile(self, "console")
-
-        self.history = self.History(self.text)
-
-    reading = 0
-    executing = 0
-    canceled = 0
-    endoffile = 0
-
-    def toggle_debugger(self, event=None):
-        if self.executing:
-            tkMessageBox.showerror("Don't debug now",
-                "You can only toggle the debugger when idle",
-                master=self.text)
-            self.set_debugger_indicator()
-            return "break"
-        else:
-            db = self.interp.getdebugger()
-            if db:
-                self.close_debugger()
-            else:
-                self.open_debugger()
-
-    def set_debugger_indicator(self):
-        db = self.interp.getdebugger()
-        self.setvar("<<toggle-debugger>>", not not db)
-
-    def toggle_jit_stack_viewer( self, event=None):
-        pass # All we need is the variable
-
-    def close_debugger(self):
-        db = self.interp.getdebugger()
-        if db:
-            self.interp.setdebugger(None)
-            db.close()
-            self.resetoutput()
-            self.console.write("[DEBUG OFF]\n")
-            sys.ps1 = ">>> "
-            self.showprompt()
-        self.set_debugger_indicator()
-
-    def open_debugger(self):
-        import Debugger
-        self.interp.setdebugger(Debugger.Debugger(self))
-        sys.ps1 = "[DEBUG ON]\n>>> "
-        self.showprompt()
-        self.set_debugger_indicator()
-
-    def beginexecuting(self):
-        # Helper for ModifiedInterpreter
-        self.resetoutput()
-        self.executing = 1
-        ##self._cancel_check = self.cancel_check
-        ##sys.settrace(self._cancel_check)
-
-    def endexecuting(self):
-        # Helper for ModifiedInterpreter
-        ##sys.settrace(None)
-        ##self._cancel_check = None
-        self.executing = 0
-        self.canceled = 0
-
-    def close(self):
-        # Extend base class method
-        if self.executing:
-            # XXX Need to ask a question here
-            if not tkMessageBox.askokcancel(
-                "Kill?",
-                "The program is still running; do you want to kill it?",
-                default="ok",
-                master=self.text):
-                return "cancel"
-            self.canceled = 1
-            if self.reading:
-                self.top.quit()
-            return "cancel"
-        return OutputWindow.close(self)
-
-    def _close(self):
-        self.close_debugger()
-        # Restore std streams
-        sys.stdout = self.save_stdout
-        sys.stderr = self.save_stderr
-        sys.stdin = self.save_stdin
-        # Break cycles
-        self.interp = None
-        self.console = None
-        self.auto = None
-        self.flist.pyshell = None
-        self.history = None
-        OutputWindow._close(self) # Really EditorWindow._close
-
-    def ispythonsource(self, filename):
-        # Override this so EditorWindow never removes the colorizer
-        return 1
-
-    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 Fork %s -- press F1 for help\n" %
-                   (sys.version, sys.platform, self.COPYRIGHT,
-                    idlever.IDLE_VERSION))
-        try:
-            sys.ps1
-        except AttributeError:
-            sys.ps1 = ">>> "
-        self.showprompt()
-        import Tkinter
-        Tkinter._default_root = None
-
-    def interact(self):
-        self.begin()
-        self.top.mainloop()
-
-    def readline(self):
-        save = self.reading
-        try:
-            self.reading = 1
-            self.top.mainloop()
-        finally:
-            self.reading = save
-        line = self.text.get("iomark", "end-1c")
-        self.resetoutput()
-        if self.canceled:
-            self.canceled = 0
-            raise KeyboardInterrupt
-        if self.endoffile:
-            self.endoffile = 0
-            return ""
-        return line
-
-    def isatty(self):
-        return 1
-
-    def cancel_callback(self, event):
-        try:
-            if self.text.compare("sel.first", "!=", "sel.last"):
-                return # Active selection -- always use default binding
-        except:
-            pass
-        if not (self.executing or self.reading):
-            self.resetoutput()
-            self.write("KeyboardInterrupt\n")
-            self.showprompt()
-            return "break"
-        self.endoffile = 0
-        self.canceled = 1
-        if self.reading:
-            self.top.quit()
-        return "break"
-
-    def eof_callback(self, event):
-        if self.executing and not self.reading:
-            return # Let the default binding (delete next char) take over
-        if not (self.text.compare("iomark", "==", "insert") and
-                self.text.compare("insert", "==", "end-1c")):
-            return # Let the default binding (delete next char) take over
-        if not self.executing:
-##             if not tkMessageBox.askokcancel(
-##                 "Exit?",
-##                 "Are you sure you want to exit?",
-##                 default="ok", master=self.text):
-##                 return "break"
-            self.resetoutput()
-            self.close()
-        else:
-            self.canceled = 0
-            self.endoffile = 1
-            self.top.quit()
-        return "break"
-
-    def home_callback(self, event):
-        if event.state != 0 and event.keysym == "Home":
-            return # <Modifier-Home>; fall back to class binding
-        if self.text.compare("iomark", "<=", "insert") and \
-           self.text.compare("insert linestart", "<=", "iomark"):
-            self.text.mark_set("insert", "iomark")
-            self.text.tag_remove("sel", "1.0", "end")
-            self.text.see("insert")
-            return "break"
-
-    def linefeed_callback(self, event):
-        # Insert a linefeed without entering anything (still autoindented)
-        if self.reading:
-            self.text.insert("insert", "\n")
-            self.text.see("insert")
-        else:
-            self.auto.auto_indent(event)
-        return "break"
-
-    def enter_callback(self, event):
-        if self.executing and not self.reading:
-            return # Let the default binding (insert '\n') take over
-        # If some text is selected, recall the selection
-        # (but only if this before the I/O mark)
-        try:
-            sel = self.text.get("sel.first", "sel.last")
-            if sel:
-                if self.text.compare("sel.last", "<=", "iomark"):
-                    self.recall(sel)
-                    return "break"
-        except:
-            pass
-        # If we're strictly before the line containing iomark, recall
-        # the current line, less a leading prompt, less leading or
-        # trailing whitespace
-        if self.text.compare("insert", "<", "iomark linestart"):
-            # Check if there's a relevant stdin range -- if so, use it
-            prev = self.text.tag_prevrange("stdin", "insert")
-            if prev and self.text.compare("insert", "<", prev[1]):
-                self.recall(self.text.get(prev[0], prev[1]))
-                return "break"
-            next = self.text.tag_nextrange("stdin", "insert")
-            if next and self.text.compare("insert lineend", ">=", next[0]):
-                self.recall(self.text.get(next[0], next[1]))
-                return "break"
-            # No stdin mark -- just get the current line
-            self.recall(self.text.get("insert linestart", "insert lineend"))
-            return "break"
-        # If we're in the current input and there's only whitespace
-        # beyond the cursor, erase that whitespace first
-        s = self.text.get("insert", "end-1c")
-        if s and not string.strip(s):
-            self.text.delete("insert", "end-1c")
-        # If we're in the current input before its last line,
-        # insert a newline right at the insert point
-        if self.text.compare("insert", "<", "end-1c linestart"):
-            self.auto.auto_indent(event)
-            return "break"
-        # We're in the last line; append a newline and submit it
-        self.text.mark_set("insert", "end-1c")
-        if self.reading:
-            self.text.insert("insert", "\n")
-            self.text.see("insert")
-        else:
-            self.auto.auto_indent(event)
-        self.text.tag_add("stdin", "iomark", "end-1c")
-        self.text.update_idletasks()
-        if self.reading:
-            self.top.quit() # Break out of recursive mainloop() in raw_input()
-        else:
-            self.runit()
-        return "break"
-
-    def recall(self, s):
-        if self.history:
-            self.history.recall(s)
-
-    def runit(self):
-        line = self.text.get("iomark", "end-1c")
-        # Strip off last newline and surrounding whitespace.
-        # (To allow you to hit return twice to end a statement.)
-        i = len(line)
-        while i > 0 and line[i-1] in " \t":
-            i = i-1
-        if i > 0 and line[i-1] == "\n":
-            i = i-1
-        while i > 0 and line[i-1] in " \t":
-            i = i-1
-        line = line[:i]
-        more = self.interp.runsource(line)
-        if not more:
-            self.showprompt()
-
-    def cancel_check(self, frame, what, args,
-                     dooneevent=tkinter.dooneevent,
-                     dontwait=tkinter.DONT_WAIT):
-        # Hack -- use the debugger hooks to be able to handle events
-        # and interrupt execution at any time.
-        # This slows execution down quite a bit, so you may want to
-        # disable this (by not calling settrace() in runcode() above)
-        # for full-bore (uninterruptable) speed.
-        # XXX This should become a user option.
-        if self.canceled:
-            return
-        dooneevent(dontwait)
-        if self.canceled:
-            self.canceled = 0
-            raise KeyboardInterrupt
-        return self._cancel_check
-
-    def open_stack_viewer(self, event=None):
-        try:
-            sys.last_traceback
-        except:
-            tkMessageBox.showerror("No stack trace",
-                "There is no stack trace yet.\n"
-                "(sys.last_traceback is not defined)",
-                master=self.text)
-            return
-        from StackViewer import StackBrowser
-        sv = StackBrowser(self.root, self.flist)
-
-    def showprompt(self):
-        self.resetoutput()
-        try:
-            s = str(sys.ps1)
-        except:
-            s = ""
-        self.console.write(s)
-        self.text.mark_set("insert", "end-1c")
-
-    def resetoutput(self):
-        source = self.text.get("iomark", "end-1c")
-        if self.history:
-            self.history.history_store(source)
-        if self.text.get("end-2c") != "\n":
-            self.text.insert("end-1c", "\n")
-        self.text.mark_set("iomark", "end-1c")
-        sys.stdout.softspace = 0
-
-    def write(self, s, tags=()):
-        self.text.mark_gravity("iomark", "right")
-        OutputWindow.write(self, s, tags, "iomark")
-        self.text.mark_gravity("iomark", "left")
-        if self.canceled:
-            self.canceled = 0
-            raise KeyboardInterrupt
-
-class PseudoFile:
-
-    def __init__(self, shell, tags):
-        self.shell = shell
-        self.tags = tags
-
-    def write(self, s):
-        self.shell.write(s, self.tags)
-
-    def writelines(self, l):
-        map(self.write, l)
-
-    def flush(self):
-        pass
-
-    def isatty(self):
-        return 1
-
-usage_msg = """\
-usage: idle.py [-c command] [-d] [-i] [-r script] [-s] [-t title] [arg] ...
-
-idle file(s)    (without options) edit the file(s)
-
--c cmd     run the command in a shell
--d         enable the debugger
--i         open an interactive shell
--i file(s) open a shell and also an editor window for each file
--r script  run a file as a script in a shell
--s         run $IDLESTARTUP or $PYTHONSTARTUP before anything else
--t title   set title of shell window
-
-Remaining arguments are applied to the command (-c) or script (-r).
-"""
-
-class usageError:
-    def __init__(self, string): self.string = string
-    def __repr__(self): return self.string
-
-class main:
-    def __init__(self, noshell=1):
-        
-        global flist, root
-        root = Tk(className="Idle")
-        fixwordbreaks(root)
-        root.withdraw()
-        flist = PyShellFileList(root)
-
-        dbg=OnDemandOutputWindow(flist)
-        dbg.set_title('IDLE Debugging Messages')
-        sys.stdout = PseudoFile(dbg,['stdout'])
-        sys.stderr = PseudoFile(dbg,['stderr'])
-        
-        try:
-            self.server = protocol.Server(connection_hook = self.address_ok)
-            protocol.publish( 'IDLE', self.connect )
-            self.main(sys.argv[1:], noshell)
-            return
-        except protocol.connectionLost:
-            try:
-                client = protocol.Client()
-                IDLE = client.getobject('IDLE')
-                if IDLE:
-                    try:
-                        IDLE.remote( sys.argv[1:] )
-                    except usageError, msg:
-                        sys.stderr.write("Error: %s\n" % str(msg))
-                        sys.stderr.write(usage_msg)
-                    return
-            except protocol.connectionLost:
-                pass
-
-        #maybe the following should be handled by a tkmessagebox for 
-        #users who don't start idle from a console??
-        print """\
-IDLE cannot run.
-
-IDLE needs to use a specific TCP/IP port (7454) in order to execute and
-debug programs. IDLE is unable to bind to this port, and so cannot
-start. Here are some possible causes of this problem:
-
-  1. TCP/IP networking is not installed or not working on this computer
-  2. Another program is running that uses this port
-  3. Another copy of IDLE stopped responding but is still bound to the port
-  4. Personal firewall software is preventing IDLE from using this port
-
-IDLE makes and accepts connections only with this computer, and does not
-communicate over the internet in any way. It's use of port 7454 should not 
-be a security risk on a single-user machine.
-"""
-        dbg.owin.gotoline(1)
-        dbg.owin.remove_selection()
-        root.mainloop() # wait for user to read message
-
-    def idle(self):
-        spawn.kill_zombies()
-        self.server.rpc_loop()
-        root.after(25, self.idle)
-
-    # We permit connections from localhost only
-    def address_ok(self, addr):
-        return addr[0] == '127.0.0.1'
-
-    def connect(self, client, addr):
-        return self
-
-    def remote( self, argv ):
-        # xxx Should make this behavior match the behavior in main, or redo
-        #     command line options entirely.
-
-        try:
-            opts, args = getopt.getopt(argv, "c:deist:")
-        except getopt.error, msg:
-            raise usageError(msg)
-
-        for filename in args:
-            flist.open(filename)
-        if not args:
-            flist.new()
-
-    def main(self, argv, noshell):
-        cmd = None
-        edit = 0
-        debug = 0
-        interactive = 0
-        script = None
-        startup = 0
-    
-        try:
-            opts, args = getopt.getopt(argv, "c:dir:st:")
-        except getopt.error, msg:
-            sys.stderr.write("Error: %s\n" % str(msg))
-            sys.stderr.write(usage_msg)
-            sys.exit(2)
-    
-        for o, a in opts:
-            noshell = 0    # There are options, bring up a shell
-            if o == '-c':
-                cmd = a
-            if o == '-d':
-                debug = 1
-            if o == '-i':
-                interactive = 1
-            if o == '-r':
-                script = a
-            if o == '-s':
-                startup = 1
-            if o == '-t':
-                PyShell.shell_title = a
-    
-        if noshell: edit=1
-        if interactive and args and args[0] != "-": edit = 1
-    
-        for i in range(len(sys.path)):
-            sys.path[i] = os.path.abspath(sys.path[i])
-    
-        pathx = []
-        if edit:
-            for filename in args:
-                pathx.append(os.path.dirname(filename))
-        elif args and args[0] != "-":
-            pathx.append(os.path.dirname(args[0]))
-        else:
-            pathx.append(os.curdir)
-        for dir in pathx:
-            dir = os.path.abspath(dir)
-            if not dir in sys.path:
-                sys.path.insert(0, dir)
-
-        if edit:
-            for filename in args:
-                flist.open(filename)
-            if not args:
-                flist.new()
-        else:
-            if cmd:
-                sys.argv = ["-c"] + args
-            else:
-                sys.argv = args or [""]
-
-        if noshell:
-          flist.pyshell = None
-        else:
-          shell = PyShell(flist)
-          interp = shell.interp
-          flist.pyshell = shell
-      
-          if startup:
-              filename = os.environ.get("IDLESTARTUP") or \
-                         os.environ.get("PYTHONSTARTUP")
-              if filename and os.path.isfile(filename):
-                  interp.execfile(filename)
-      
-          if debug:
-              shell.open_debugger()
-          if cmd:
-              interp.execsource(cmd)
-          elif script:
-             if os.path.isfile(script):
-                 interp.execfile(script)
-             else:
-                 print "No script file: ", script
-          shell.begin()
-
-        self.idle()
-        root.mainloop()
-        root.destroy()
-
-
-if __name__ == "__main__":
-    main()