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How to use _report_traceback method in Slash

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__init__.py
Source:__init__.py
1#!/usr/bin/python32## Printing troubleshooter3## Copyright (C) 2008, 2009, 2010, 2012 Red Hat, Inc.4## Author: Tim Waugh <twaugh@redhat.com>5## This program is free software; you can redistribute it and/or modify6## it under the terms of the GNU General Public License as published by7## the Free Software Foundation; either version 2 of the License, or8## (at your option) any later version.9## This program is distributed in the hope that it will be useful,10## but WITHOUT ANY WARRANTY; without even the implied warranty of11## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12## GNU General Public License for more details.13## You should have received a copy of the GNU General Public License14## along with this program; if not, write to the Free Software15## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.16from gi.repository import Gdk17from gi.repository import Gtk18import pprint19import sys20import datetime21import time22import traceback23if __name__ == "__main__":24    import os.path25    import gettext26    gettext.textdomain ('system-config-printer')27    if sys.argv[0][0] != '/':28        cwd = os.getcwd ()29        path = cwd + os.path.sep + sys.argv[0]30    else:31        path = sys.argv[0]32    sub = os.path.dirname (path)33    root = os.path.dirname (sub)34    sys.path.append (root)35from . import base36from .base import *37class Troubleshooter:38    def __init__ (self, quitfn=None, parent=None):39        self._in_module_call = False40        main = Gtk.Window ()41        if parent:42            main.set_transient_for (parent)43            main.set_position (Gtk.WindowPosition.CENTER_ON_PARENT)44            main.set_modal (True)45        main.set_title (_("Printing troubleshooter"))46        main.set_property ("default-width", 400)47        main.set_property ("default-height", 350)48        main.connect ("delete_event", self.quit)49        self.main = main50        self.quitfn = quitfn51        vbox = Gtk.VBox ()52        main.add (vbox)53        ntbk = Gtk.Notebook ()54        ntbk.set_border_width (6)55        vbox.pack_start (ntbk, True, True, 0)56        vbox.pack_start (Gtk.HSeparator (), False, False, 0)57        box = Gtk.HButtonBox ()58        box.set_border_width (6)59        box.set_spacing (3)60        box.set_layout (Gtk.ButtonBoxStyle.END)61        back = Gtk.Button.new_from_stock (Gtk.STOCK_GO_BACK)62        back.connect ('clicked', self._on_back_clicked)63        back.set_sensitive (False)64        self.back = back65        close = Gtk.Button.new_from_stock (Gtk.STOCK_CLOSE)66        close.connect ('clicked', self.quit)67        self.close = close68        cancel = Gtk.Button.new_from_stock (Gtk.STOCK_CANCEL)69        cancel.connect ('clicked', self.quit)70        self.cancel = cancel71        forward = Gtk.Button.new_from_stock (Gtk.STOCK_GO_FORWARD)72        forward.connect ('clicked', self._on_forward_clicked)73        self.forward = forward74        box.pack_start (back, False, False, 0)75        box.pack_start (cancel, False, False, 0)76        box.pack_start (close, False, False, 0)77        box.pack_start (forward, False, False, 0)78        vbox.pack_start (box, False, False, 0)79        forward.set_property('can-default', True)80        forward.set_property('has-default', True)81        ntbk.set_current_page (0)82        ntbk.set_show_tabs (False)83        self.ntbk = ntbk84        self.current_page = 085        self.questions = []86        self.question_answers = []87        # timestamp should be accessible through whole troubleshoot88        now = datetime.datetime.fromtimestamp (time.time ())89        self.answers = {'error_log_timestamp': now.strftime ("%F %T")}90        self.moving_backwards = False91        main.show_all ()92    def quit (self, *args):93        if self._in_module_call:94            try:95                self.questions[self.current_page].cancel_operation ()96            except:97                self._report_traceback ()98            return99        try:100            self.questions[self.current_page].disconnect_signals ()101        except:102            self._report_traceback ()103        # Delete the questions so that their __del__ hooks can run.104        # Do this in reverse order of creation.105        for i in range (len (self.questions)):106            self.questions.pop ()107        self.main.hide ()108        if self.quitfn:109            self.quitfn (self)110    def get_window (self):111        # Any error dialogs etc from the modules need to be able112        # to set themselves transient for this window.113        return self.main114    def no_more_questions (self, question):115        page = self.questions.index (question)116        debugprint ("Page %d: No more questions." % page)117        self.questions = self.questions[:page + 1]118        self.question_answers = self.question_answers[:page + 1]119        for p in range (self.ntbk.get_n_pages () - 1, page, -1):120            self.ntbk.remove_page (p)121        self._set_back_forward_buttons ()122    def new_page (self, widget, question):123        page = len (self.questions)124        debugprint ("Page %d: new: %s" % (page, str (question)))125        self.questions.append (question)126        self.question_answers.append ([])127        self.ntbk.insert_page (widget, None, page)128        widget.show_all ()129        if page == 0:130            try:131                question.connect_signals (self._set_back_forward_buttons)132            except:133                self._report_traceback ()134            self.ntbk.set_current_page (page)135            self.current_page = page136        self._set_back_forward_buttons ()137        return page138    def is_moving_backwards (self):139        return self.moving_backwards140    def answers_as_text (self):141        text = ""142        n = 1143        for i in range (self.current_page):144            answers = self.question_answers[i].copy ()145            for hidden in [x for x in answers.keys() if x.startswith ("_")]:146                del answers[hidden]147            if len (list(answers.keys ())) == 0:148                continue149            text += "Page %d (%s):" % (n, self.questions[i]) + '\n'150            text += pprint.pformat (answers) + '\n'151            n += 1152        return text.rstrip () + '\n'153    def busy (self):154        self._in_module_call = True155        self.forward.set_sensitive (False)156        self.back.set_sensitive (False)157        gdkwin = self.get_window ().get_window()158        if gdkwin:159            gdkwin.set_cursor (Gdk.Cursor.new(Gdk.CursorType.WATCH))160            while Gtk.events_pending ():161                Gtk.main_iteration ()162    def ready (self):163        self._in_module_call = False164        gdkwin = self.get_window ().get_window()165        if gdkwin:166            gdkwin.set_cursor (Gdk.Cursor.new(Gdk.CursorType.LEFT_PTR))167        self._set_back_forward_buttons ()168    def _set_back_forward_buttons (self, *args):169        page = self.current_page170        self.back.set_sensitive (page != 0)171        if len (self.questions) == page + 1:172            # Out of questions.173            debugprint ("Out of questions")174            self.forward.set_sensitive (False)175            self.close.show ()176            self.cancel.hide ()177        else:178            can = self._can_click_forward (self.questions[page])179            debugprint ("Page %d: can click forward? %s" % (page, can))180            self.forward.set_sensitive (can)181            self.close.hide ()182            self.cancel.show ()183    def _on_back_clicked (self, widget):184        self.busy ()185        self.moving_backwards = True186        try:187            self.questions[self.current_page].disconnect_signals ()188        except:189            self._report_traceback ()190        self.current_page -= 1191        question = self.questions[self.current_page]192        while not self._display (question):193            # Skip this one.            194            debugprint ("Page %d: skip" % (self.current_page))195            self.current_page -= 1196            question = self.questions[self.current_page]197        self.ntbk.set_current_page (self.current_page)198        answers = {}199        for i in range (self.current_page):200            answers.update (self.question_answers[i])201        self.answers = answers202        try:203            self.questions[self.current_page].\204                connect_signals (self._set_back_forward_buttons)205        except:206            self._report_traceback ()207        self.moving_backwards = False208        self.ready ()209    def _on_forward_clicked (self, widget):210        self.busy ()211        answer_dict = self._collect_answer (self.questions[self.current_page])212        self.question_answers[self.current_page] = answer_dict213        self.answers.update (answer_dict)214        try:215            self.questions[self.current_page].disconnect_signals ()216        except:217            self._report_traceback ()218        self.current_page += 1219        question = self.questions[self.current_page]220        while not self._display (question):221            # Skip this one, but collect its answers.222            answer_dict = self._collect_answer (question)223            self.question_answers[self.current_page] = answer_dict224            self.answers.update (answer_dict)225            debugprint ("Page %d: skip" % (self.current_page))226            self.current_page += 1227            question = self.questions[self.current_page]228        self.ntbk.set_current_page (self.current_page)229        try:230            question.connect_signals (self._set_back_forward_buttons)231        except:232            self._report_traceback ()233        self.ready ()234        if get_debugging ():235            self._dump_answers ()236    def _dump_answers (self):237        debugprint (self.answers_as_text ())238    def _report_traceback (self):239        try:240            print("Traceback:")241            (type, value, tb) = sys.exc_info ()242            tblast = traceback.extract_tb (tb, limit=None)243            if len (tblast):244                tblast = tblast[:len (tblast) - 1]245            extxt = traceback.format_exception_only (type, value)246            for line in traceback.format_tb(tb):247                print(line.strip ())248            print(extxt[0].strip ())249        except:250            pass251    def _display (self, question):252        result = False253        try:254            result = question.display ()255        except:256            self._report_traceback ()257        question.displayed = result258        return result259    def _can_click_forward (self, question):260        try:261            return question.can_click_forward ()262        except:263            self._report_traceback ()264            return True265    def _collect_answer (self, question):266        answer = {}267        try:268            answer = question.collect_answer ()269        except:270            self._report_traceback ()271        return answer272QUESTIONS = ["Welcome",273             "SchedulerNotRunning",274             "CheckLocalServerPublishing",275             "ChoosePrinter",276             "CheckPrinterSanity",277             "CheckPPDSanity",278             "LocalOrRemote",279             "DeviceListed",280             "CheckUSBPermissions",281             "RemoteAddress",282             "CheckNetworkServerSanity",283             "ChooseNetworkPrinter",284             "NetworkCUPSPrinterShared",285             "QueueNotEnabled",286             "QueueRejectingJobs",287             "PrinterStateReasons",288             "VerifyPackages",289             "CheckSELinux",290             "ServerFirewalled",291             "ErrorLogCheckpoint",292             "PrintTestPage",293             "ErrorLogFetch",294             "PrinterStateReasons",295             "ErrorLogParse",296             "Locale",297             "Shrug"]298def run (quitfn=None, parent=None):299    troubleshooter = Troubleshooter (quitfn, parent=parent)300    modules_imported = []301    for module in QUESTIONS:302        try:303            if not module in modules_imported:304                exec ("from .%s import %s" % (module, module))305                modules_imported.append (module)306            exec ("%s (troubleshooter)" % module)307        except:308            troubleshooter._report_traceback ()309    return troubleshooter310if __name__ == "__main__":311    import getopt312    try:313        opts, args = getopt.gnu_getopt (sys.argv[1:], '',314                                        ['debug'])315        for opt, optarg in opts:316            if opt == '--debug':317                set_debugging (True)318    except getopt.GetoptError:319        pass320    Gdk.threads_init()321    run (Gtk.main_quit)322    Gdk.threads_enter ()323    Gtk.main ()...
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