#! /usr/bin/python2.7

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from __future__ import print_function

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import os

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import os.path

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import sys

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import string

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import getopt

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import re

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import socket

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import time

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import threading

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import io

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import linecache

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from code import InteractiveInterpreter

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from platform import python_version, system

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try:

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from Tkinter import *

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except ImportError:

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print("** IDLE can't import Tkinter.\n"

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"Your Python may not be configured for Tk. **", file=sys.__stderr__)

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sys.exit(1)

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import tkMessageBox

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from idlelib.EditorWindow import EditorWindow, fixwordbreaks

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from idlelib.FileList import FileList

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from idlelib.ColorDelegator import ColorDelegator

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from idlelib.UndoDelegator import UndoDelegator

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from idlelib.OutputWindow import OutputWindow

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from idlelib.configHandler import idleConf

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from idlelib import rpc

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from idlelib import Debugger

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from idlelib import RemoteDebugger

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from idlelib import macosxSupport

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from idlelib import IOBinding

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IDENTCHARS = string.ascii_letters + string.digits + "_"

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HOST = '127.0.0.1' # python execution server on localhost loopback

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PORT = 0 # someday pass in host, port for remote debug capability

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try:

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from signal import SIGTERM

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except ImportError:

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SIGTERM = 15

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# Override warnings module to write to warning_stream. Initialize to send IDLE

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# internal warnings to the console. ScriptBinding.check_syntax() will

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# temporarily redirect the stream to the shell window to display warnings when

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# checking user's code.

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warning_stream = sys.__stderr__ # None, at least on Windows, if no console.

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import warnings

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def idle_formatwarning(message, category, filename, lineno, line=None):

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"""Format warnings the IDLE way."""

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s = "\nWarning (from warnings module):\n"

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s += ' File \"%s\", line %s\n' % (filename, lineno)

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if line is None:

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line = linecache.getline(filename, lineno)

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line = line.strip()

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if line:

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s += " %s\n" % line

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s += "%s: %s\n" % (category.__name__, message)

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return s

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def idle_showwarning(

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message, category, filename, lineno, file=None, line=None):

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"""Show Idle-format warning (after replacing warnings.showwarning).

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The differences are the formatter called, the file=None replacement,

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which can be None, the capture of the consequence AttributeError,

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and the output of a hard-coded prompt.

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"""

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if file is None:

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file = warning_stream

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try:

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file.write(idle_formatwarning(

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message, category, filename, lineno, line=line))

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file.write(">>> ")

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except (AttributeError, IOError):

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pass # if file (probably __stderr__) is invalid, skip warning.

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_warnings_showwarning = None

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def capture_warnings(capture):

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"Replace warning.showwarning with idle_showwarning, or reverse."

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global _warnings_showwarning

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if capture:

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if _warnings_showwarning is None:

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_warnings_showwarning = warnings.showwarning

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warnings.showwarning = idle_showwarning

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else:

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if _warnings_showwarning is not None:

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warnings.showwarning = _warnings_showwarning

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_warnings_showwarning = None

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capture_warnings(True)

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def extended_linecache_checkcache(filename=None,

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orig_checkcache=linecache.checkcache):

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"""Extend linecache.checkcache to preserve the <pyshell#...> entries

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Rather than repeating the linecache code, patch it to save the

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<pyshell#...> entries, call the original linecache.checkcache()

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(skipping them), and then restore the saved entries.

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orig_checkcache is bound at definition time to the original

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method, allowing it to be patched.

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"""

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cache = linecache.cache

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save = {}

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for key in list(cache):

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if key[:1] + key[-1:] == '<>':

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save[key] = cache.pop(key)

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orig_checkcache(filename)

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cache.update(save)

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# Patch linecache.checkcache():

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linecache.checkcache = extended_linecache_checkcache

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class PyShellEditorWindow(EditorWindow):

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"Regular text edit window in IDLE, supports breakpoints"

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def __init__(self, *args):

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self.breakpoints = []

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EditorWindow.__init__(self, *args)

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self.text.bind("<<set-breakpoint-here>>", self.set_breakpoint_here)

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self.text.bind("<<clear-breakpoint-here>>", self.clear_breakpoint_here)

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self.text.bind("<<open-python-shell>>", self.flist.open_shell)

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self.breakpointPath = os.path.join(idleConf.GetUserCfgDir(),

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'breakpoints.lst')

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# whenever a file is changed, restore breakpoints

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def filename_changed_hook(old_hook=self.io.filename_change_hook,

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self=self):

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self.restore_file_breaks()

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old_hook()

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self.io.set_filename_change_hook(filename_changed_hook)

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if self.io.filename:

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self.restore_file_breaks()

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self.color_breakpoint_text()

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rmenu_specs = [

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("Cut", "<<cut>>", "rmenu_check_cut"),

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("Copy", "<<copy>>", "rmenu_check_copy"),

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("Paste", "<<paste>>", "rmenu_check_paste"),

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("Set Breakpoint", "<<set-breakpoint-here>>", None),

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("Clear Breakpoint", "<<clear-breakpoint-here>>", None)

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]

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def color_breakpoint_text(self, color=True):

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"Turn colorizing of breakpoint text on or off"

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if self.io is None:

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# possible due to update in restore_file_breaks

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return

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if color:

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theme = idleConf.CurrentTheme()

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cfg = idleConf.GetHighlight(theme, "break")

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else:

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cfg = {'foreground': '', 'background': ''}

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self.text.tag_config('BREAK', cfg)

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def set_breakpoint(self, lineno):

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text = self.text

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filename = self.io.filename

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text.tag_add("BREAK", "%d.0" % lineno, "%d.0" % (lineno+1))

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try:

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self.breakpoints.index(lineno)

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except ValueError: # only add if missing, i.e. do once

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self.breakpoints.append(lineno)

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try: # update the subprocess debugger

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debug = self.flist.pyshell.interp.debugger

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debug.set_breakpoint_here(filename, lineno)

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except: # but debugger may not be active right now....

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pass

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def set_breakpoint_here(self, event=None):

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text = self.text

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filename = self.io.filename

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if not filename:

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text.bell()

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return

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lineno = int(float(text.index("insert")))

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self.set_breakpoint(lineno)

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def clear_breakpoint_here(self, event=None):

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text = self.text

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filename = self.io.filename

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if not filename:

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text.bell()

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return

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lineno = int(float(text.index("insert")))

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try:

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self.breakpoints.remove(lineno)

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except:

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pass

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text.tag_remove("BREAK", "insert linestart",\

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"insert lineend +1char")

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try:

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debug = self.flist.pyshell.interp.debugger

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debug.clear_breakpoint_here(filename, lineno)

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except:

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pass

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def clear_file_breaks(self):

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if self.breakpoints:

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text = self.text

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filename = self.io.filename

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if not filename:

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text.bell()

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return

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self.breakpoints = []

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text.tag_remove("BREAK", "1.0", END)

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try:

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debug = self.flist.pyshell.interp.debugger

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debug.clear_file_breaks(filename)

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except:

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pass

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def store_file_breaks(self):

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"Save breakpoints when file is saved"

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# XXX 13 Dec 2002 KBK Currently the file must be saved before it can

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# be run. The breaks are saved at that time. If we introduce

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# a temporary file save feature the save breaks functionality

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# needs to be re-verified, since the breaks at the time the

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# temp file is created may differ from the breaks at the last

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# permanent save of the file. Currently, a break introduced

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# after a save will be effective, but not persistent.

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# This is necessary to keep the saved breaks synched with the

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# saved file.

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#

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# Breakpoints are set as tagged ranges in the text.

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# Since a modified file has to be saved before it is

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# run, and since self.breakpoints (from which the subprocess

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# debugger is loaded) is updated during the save, the visible

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# breaks stay synched with the subprocess even if one of these

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# unexpected breakpoint deletions occurs.

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breaks = self.breakpoints

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filename = self.io.filename

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try:

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with open(self.breakpointPath,"r") as old_file:

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lines = old_file.readlines()

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except IOError:

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lines = []

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try:

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with open(self.breakpointPath,"w") as new_file:

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for line in lines:

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if not line.startswith(filename + '='):

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new_file.write(line)

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self.update_breakpoints()

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breaks = self.breakpoints

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if breaks:

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new_file.write(filename + '=' + str(breaks) + '\n')

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except IOError as err:

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if not getattr(self.root, "breakpoint_error_displayed", False):

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self.root.breakpoint_error_displayed = True

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tkMessageBox.showerror(title='IDLE Error',

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message='Unable to update breakpoint list:\n%s'

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% str(err),

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parent=self.text)

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def restore_file_breaks(self):

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self.text.update() # this enables setting "BREAK" tags to be visible

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if self.io is None:

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# can happen if IDLE closes due to the .update() call

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return

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filename = self.io.filename

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if filename is None:

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return

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if os.path.isfile(self.breakpointPath):

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lines = open(self.breakpointPath,"r").readlines()

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for line in lines:

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if line.startswith(filename + '='):

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breakpoint_linenumbers = eval(line[len(filename)+1:])

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for breakpoint_linenumber in breakpoint_linenumbers:

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self.set_breakpoint(breakpoint_linenumber)

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def update_breakpoints(self):

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"Retrieves all the breakpoints in the current window"

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text = self.text

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ranges = text.tag_ranges("BREAK")

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linenumber_list = self.ranges_to_linenumbers(ranges)

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self.breakpoints = linenumber_list

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def ranges_to_linenumbers(self, ranges):

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lines = []

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for index in range(0, len(ranges), 2):

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lineno = int(float(ranges[index].string))

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end = int(float(ranges[index+1].string))

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while lineno < end:

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lines.append(lineno)

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lineno += 1

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return lines

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# XXX 13 Dec 2002 KBK Not used currently

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# def saved_change_hook(self):

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# "Extend base method - clear breaks if module is modified"

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# if not self.get_saved():

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# self.clear_file_breaks()

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# EditorWindow.saved_change_hook(self)

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def _close(self):

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"Extend base method - clear breaks when module is closed"

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self.clear_file_breaks()

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EditorWindow._close(self)

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class PyShellFileList(FileList):

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"Extend base class: IDLE supports a shell and breakpoints"

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# override FileList's class variable, instances return PyShellEditorWindow

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# instead of EditorWindow when new edit windows are created.

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EditorWindow = PyShellEditorWindow

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pyshell = None

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def open_shell(self, event=None):

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if self.pyshell:

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self.pyshell.top.wakeup()

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else:

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self.pyshell = PyShell(self)

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if self.pyshell:

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if not self.pyshell.begin():

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return None

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return self.pyshell

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class ModifiedColorDelegator(ColorDelegator):

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"Extend base class: colorizer for the shell window itself"

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def __init__(self):

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ColorDelegator.__init__(self)

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self.LoadTagDefs()

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def recolorize_main(self):

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self.tag_remove("TODO", "1.0", "iomark")

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self.tag_add("SYNC", "1.0", "iomark")

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ColorDelegator.recolorize_main(self)

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def LoadTagDefs(self):

[343] Fix | Delete

ColorDelegator.LoadTagDefs(self)

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theme = idleConf.CurrentTheme()

[345] Fix | Delete

self.tagdefs.update({

[346] Fix | Delete

"stdin": {'background':None,'foreground':None},

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"stdout": idleConf.GetHighlight(theme, "stdout"),

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"stderr": idleConf.GetHighlight(theme, "stderr"),

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"console": idleConf.GetHighlight(theme, "console"),

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})

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def removecolors(self):

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# Don't remove shell color tags before "iomark"

[354] Fix | Delete

for tag in self.tagdefs:

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self.tag_remove(tag, "iomark", "end")

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class ModifiedUndoDelegator(UndoDelegator):

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"Extend base class: forbid insert/delete before the I/O mark"

[359] Fix | Delete

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def insert(self, index, chars, tags=None):

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try:

[362] Fix | Delete

if self.delegate.compare(index, "<", "iomark"):

[363] Fix | Delete

self.delegate.bell()

[364] Fix | Delete

return

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except TclError:

[366] Fix | Delete

pass

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UndoDelegator.insert(self, index, chars, tags)

[368] Fix | Delete

[369] Fix | Delete

def delete(self, index1, index2=None):

[370] Fix | Delete

try:

[371] Fix | Delete

if self.delegate.compare(index1, "<", "iomark"):

[372] Fix | Delete

self.delegate.bell()

[373] Fix | Delete

return

[374] Fix | Delete

except TclError:

[375] Fix | Delete

pass

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UndoDelegator.delete(self, index1, index2)

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[378] Fix | Delete

[379] Fix | Delete

class MyRPCClient(rpc.RPCClient):

[380] Fix | Delete

[381] Fix | Delete

def handle_EOF(self):

[382] Fix | Delete

"Override the base class - just re-raise EOFError"

[383] Fix | Delete

raise EOFError

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[385] Fix | Delete

[386] Fix | Delete

class ModifiedInterpreter(InteractiveInterpreter):

[387] Fix | Delete

[388] Fix | Delete

def __init__(self, tkconsole):

[389] Fix | Delete

self.tkconsole = tkconsole

[390] Fix | Delete

locals = sys.modules['__main__'].__dict__

[391] Fix | Delete

InteractiveInterpreter.__init__(self, locals=locals)

[392] Fix | Delete

self.save_warnings_filters = None

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self.restarting = False

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self.subprocess_arglist = None

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self.port = PORT

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self.original_compiler_flags = self.compile.compiler.flags

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[398] Fix | Delete

_afterid = None

[399] Fix | Delete

rpcclt = None

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rpcpid = None

[401] Fix | Delete

[402] Fix | Delete

def spawn_subprocess(self):

[403] Fix | Delete

if self.subprocess_arglist is None:

[404] Fix | Delete

self.subprocess_arglist = self.build_subprocess_arglist()

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args = self.subprocess_arglist

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self.rpcpid = os.spawnv(os.P_NOWAIT, sys.executable, args)

[407] Fix | Delete

[408] Fix | Delete

def build_subprocess_arglist(self):

[409] Fix | Delete

assert (self.port!=0), (

[410] Fix | Delete

"Socket should have been assigned a port number.")

[411] Fix | Delete

w = ['-W' + s for s in sys.warnoptions]

[412] Fix | Delete

if 1/2 > 0: # account for new division

[413] Fix | Delete

w.append('-Qnew')

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# Maybe IDLE is installed and is being accessed via sys.path,

[415] Fix | Delete

# or maybe it's not installed and the idle.py script is being

[416] Fix | Delete

# run from the IDLE source directory.

[417] Fix | Delete

del_exitf = idleConf.GetOption('main', 'General', 'delete-exitfunc',

[418] Fix | Delete

default=False, type='bool')

[419] Fix | Delete

if __name__ == 'idlelib.PyShell':

[420] Fix | Delete

command = "__import__('idlelib.run').run.main(%r)" % (del_exitf,)

[421] Fix | Delete

else:

[422] Fix | Delete

command = "__import__('run').main(%r)" % (del_exitf,)

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if sys.platform[:3] == 'win' and ' ' in sys.executable:

[424] Fix | Delete

# handle embedded space in path by quoting the argument

[425] Fix | Delete

decorated_exec = '"%s"' % sys.executable

[426] Fix | Delete

else:

[427] Fix | Delete

decorated_exec = sys.executable

[428] Fix | Delete

return [decorated_exec] + w + ["-c", command, str(self.port)]

[429] Fix | Delete

[430] Fix | Delete

def start_subprocess(self):

[431] Fix | Delete

addr = (HOST, self.port)

[432] Fix | Delete

# GUI makes several attempts to acquire socket, listens for connection

[433] Fix | Delete

for i in range(3):

[434] Fix | Delete

time.sleep(i)

[435] Fix | Delete

try:

[436] Fix | Delete

self.rpcclt = MyRPCClient(addr)

[437] Fix | Delete

break

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except socket.error:

[439] Fix | Delete

pass

[440] Fix | Delete

else:

[441] Fix | Delete

self.display_port_binding_error()

[442] Fix | Delete

return None

[443] Fix | Delete

# if PORT was 0, system will assign an 'ephemeral' port. Find it out:

[444] Fix | Delete

self.port = self.rpcclt.listening_sock.getsockname()[1]

[445] Fix | Delete

# if PORT was not 0, probably working with a remote execution server

[446] Fix | Delete

if PORT != 0:

[447] Fix | Delete

# To allow reconnection within the 2MSL wait (cf. Stevens TCP

[448] Fix | Delete

# V1, 18.6), set SO_REUSEADDR. Note that this can be problematic

[449] Fix | Delete

# on Windows since the implementation allows two active sockets on

[450] Fix | Delete

# the same address!

[451] Fix | Delete

self.rpcclt.listening_sock.setsockopt(socket.SOL_SOCKET,

[452] Fix | Delete

socket.SO_REUSEADDR, 1)

[453] Fix | Delete

self.spawn_subprocess()

[454] Fix | Delete

#time.sleep(20) # test to simulate GUI not accepting connection

[455] Fix | Delete

# Accept the connection from the Python execution server

[456] Fix | Delete

self.rpcclt.listening_sock.settimeout(10)

[457] Fix | Delete

try:

[458] Fix | Delete

self.rpcclt.accept()

[459] Fix | Delete

except socket.timeout:

[460] Fix | Delete

self.display_no_subprocess_error()

[461] Fix | Delete

return None

[462] Fix | Delete

self.rpcclt.register("console", self.tkconsole)

[463] Fix | Delete

self.rpcclt.register("stdin", self.tkconsole.stdin)

[464] Fix | Delete

self.rpcclt.register("stdout", self.tkconsole.stdout)

[465] Fix | Delete

self.rpcclt.register("stderr", self.tkconsole.stderr)

[466] Fix | Delete

self.rpcclt.register("flist", self.tkconsole.flist)

[467] Fix | Delete

self.rpcclt.register("linecache", linecache)

[468] Fix | Delete

self.rpcclt.register("interp", self)

[469] Fix | Delete

self.transfer_path(with_cwd=True)

[470] Fix | Delete

self.poll_subprocess()

[471] Fix | Delete

return self.rpcclt

[472] Fix | Delete

[473] Fix | Delete

def restart_subprocess(self, with_cwd=False, filename=''):

[474] Fix | Delete

if self.restarting:

[475] Fix | Delete

return self.rpcclt

[476] Fix | Delete

self.restarting = True

[477] Fix | Delete

# close only the subprocess debugger

[478] Fix | Delete

debug = self.getdebugger()

[479] Fix | Delete

if debug:

[480] Fix | Delete

try:

[481] Fix | Delete

# Only close subprocess debugger, don't unregister gui_adap!

[482] Fix | Delete

RemoteDebugger.close_subprocess_debugger(self.rpcclt)

[483] Fix | Delete

except:

[484] Fix | Delete

pass

[485] Fix | Delete

# Kill subprocess, spawn a new one, accept connection.

[486] Fix | Delete

self.rpcclt.close()

[487] Fix | Delete

self.unix_terminate()

[488] Fix | Delete

console = self.tkconsole

[489] Fix | Delete

was_executing = console.executing

[490] Fix | Delete

console.executing = False

[491] Fix | Delete

self.spawn_subprocess()

[492] Fix | Delete

try:

[493] Fix | Delete

self.rpcclt.accept()

[494] Fix | Delete

except socket.timeout:

[495] Fix | Delete

self.display_no_subprocess_error()

[496] Fix | Delete

return None

[497] Fix | Delete

self.transfer_path(with_cwd=with_cwd)

[498] Fix | Delete

console.stop_readline()

[499] Fix | Delete