Python sys 模块，frozen() 实例源码

def _run():
    global __file__
    import os, site
    sys.frozen = 'macosx_app'
    base = os.environ['RESOURCEPATH']

    argv0 = os.path.basename(os.environ['ARGVZERO'])
    script = SCRIPT_MAP.get(argv0, DEFAULT_SCRIPT)

    path = os.path.join(base, script)
    sys.argv[0] = __file__ = path
    if sys.version_info[0] == 2:
        with open(path, 'rU') as fp:
            source = fp.read() + "\n"
    else:
        with open(path, 'rb') as fp:
            encoding = guess_encoding(fp)

        with open(path, 'r', encoding=encoding) as fp:
            source = fp.read() + '\n'
    exec(compile(source, path, 'exec'), globals(), globals())

def main():
    global __file__

    # Needed on OS X <= 10.8, which passes -psn_... as a command line arg when
    # starting via launch services
    for arg in tuple(sys.argv[1:]):
        if arg.startswith('-psn_'):
            sys.argv.remove(arg)

    base = sys.resourcepath
    sys.frozen = 'macosx_app'
    sys.new_app_bundle = True
    abs__file__()

    add_calibre_vars(base)
    addsitedir(sys.site_packages)

    if sys.calibre_is_gui_app and not (
            sys.stdout.isatty() or sys.stderr.isatty() or sys.stdin.isatty()):
        nuke_stdout()

    return run_entry_point()

def main():
    sys.frozen = 'windows_exe'
    sys.setdefaultencoding('utf-8')
    aliasmbcs()

    sys.meta_path.insert(0, PydImporter())
    sys.path_importer_cache.clear()

    import linecache
    def fake_getline(filename, lineno, module_globals=None):
        return ''
    linecache.orig_getline = linecache.getline
    linecache.getline = fake_getline

    abs__file__()

    add_calibre_vars()

    # Needed for pywintypes to be able to load its DLL
    sys.path.append(os.path.join(sys.app_dir, 'app', 'DLLs'))

    return run_entry_point()

def teardown_environment():
    """Restore things that were remembered by the setup_environment function
    """
    (oldenv, os.name, sys.platform, path.get_home_dir, IPython.__file__, old_wd) = oldstuff
    os.chdir(old_wd)
    reload(path)

    for key in list(env):
        if key not in oldenv:
            del env[key]
    env.update(oldenv)
    if hasattr(sys, 'frozen'):
        del sys.frozen

# Build decorator that uses the setup_environment/setup_environment

def _run():
    global __file__
    import os, site
    sys.frozen = 'macosx_app'
    base = os.environ['RESOURCEPATH']

    argv0 = os.path.basename(os.environ['ARGVZERO'])
    script = SCRIPT_MAP.get(argv0, DEFAULT_SCRIPT)

    path = os.path.join(base, script)
    sys.argv[0] = __file__ = path
    if sys.version_info[0] == 2:
        with open(path, 'rU') as fp:
            source = fp.read() + "\n"
    else:
        with open(path, 'rb') as fp:
            encoding = guess_encoding(fp)

        with open(path, 'r', encoding=encoding) as fp:
            source = fp.read() + '\n'

        BOM=b'\xef\xbb\xbf'.decode('utf-8')
        if source.startswith(BOM):
            source = source[1:]
    exec(compile(source, path, 'exec'), globals(), globals())

def main():
  try:
    if not is_admin():
      try:
        elevate([sys.executable, os.path.abspath(sys.argv[0])])
      except NotImplementedError as exc:
        if sys.frozen:
          raise
        print('note:', exc)

    import c4dinstaller
    res = c4dinstaller.main()
  except Exception as exc:
    traceback.print_exc()
    fatal(traceback.format_exc())
    raise
  else:
    sys.exit(res)

def initForm(self):
      self.dataFile = os.path.basename(sys.argv[0]) + '.data'
      self.dataFile = os.path.join(os.path.dirname(sys.argv[0]), self.dataFile)
      if not os.path.isfile(self.dataFile):
        if sys.frozen:
          fatal('"{}" does not exist'.format(self.dataFile))
        # If we're not in a frozen environment (built with PyInstaller),
        # for testing purposes we still want the uninstaller to run.
        self.dataFile = None

      self.welcomePage = WelcomePage(self)
      self.uninstallPage = UninstallPage(self)

      self.stackedPages.addWidget(self.welcomePage)
      self.stackedPages.addWidget(self.uninstallPage)

      self.setWindowTitle(self.ls('uninstall.title'))
      self.setCurrentPage(self.welcomePage)
      super().initForm()

def is_multiprocessing_available():
    if (pycam.Utils.get_platform() == pycam.Utils.OSPlatform.WINDOWS) and \
            hasattr(sys, "frozen") and sys.frozen:
        return False
    try:
        import multiprocessing
        # try to initialize a semaphore - this can trigger shm access failures
        # (e.g. on Debian Lenny with Python 2.6.6)
        multiprocessing.Semaphore()
        return True
    except ImportError:
        if "missing_module" not in __issued_warnings:
            log.info("Python's multiprocessing module is missing: disabling parallel processing")
            __issued_warnings.append("missing_module")
    except OSError:
        if "shm_access_failed" not in __issued_warnings:
            log.info("Python's multiprocessing module failed to acquire read/write access to "
                     "shared memory (shm) - disabling parallel processing")
            __issued_warnings.append("shm_access_failed")
    return False

def init():
    import sys
    import os
    import os.path
    if sys.version_info.major != 2:
        sys.exit('Python 2 is required to run this program')

    fdir = None
    if hasattr(sys, "frozen") and \
            sys.frozen in ("windows_exe", "console_exe"):
        fdir = os.path.dirname(os.path.abspath(sys.executable))
        sys.path.append(fdir)
        fdir = os.path.join(fdir, '..')
    else:
        fdir = os.path.dirname(__file__)

    with open(os.path.join(fdir, 'apikey.cfg')) as f:
        exec(f.read())

    srv = locals().get('SERVER')
    from facepp import API
    return API(API_KEY, API_SECRET, srv = srv)

def _run():
    global __file__
    import os, site
    sys.frozen = 'macosx_app'

    argv0 = os.path.basename(os.environ['ARGVZERO'])
    script = SCRIPT_MAP.get(argv0, DEFAULT_SCRIPT)

    sys.argv[0] = __file__ = script
    if sys.version_info[0] == 2:
        with open(script, 'rU') as fp:
            source = fp.read() + "\n"
    else:
        with open(script, 'rb') as fp:
            encoding = guess_encoding(fp)

        with open(script, 'r', encoding=encoding) as fp:
            source = fp.read() + '\n'

        BOM=b'\xef\xbb\xbf'.decode('utf-8')
        if source.startswith(BOM):
            source = source[1:]


    exec(compile(source, script, 'exec'), globals(), globals())

def __init__(self):
        import win32api
        win32api.MessageBox(0, "NextID.__init__ started", "NextID.py")
        global d
        if sys.frozen:
            for entry in sys.path:
                if entry.find('?') > -1:
                    here = os.path.dirname(entry.split('?')[0])
                    break
            else:
                here = os.getcwd()
        else:
            here = os.path.dirname(__file__)
        self.fnm = os.path.join(here, 'id.cfg')
        try:
            d = eval(open(self.fnm, 'rU').read()+'\n')
        except:
            d = {
                'systemID': 0xaaaab,
                'highID': 0
            }
        win32api.MessageBox(0, "NextID.__init__ complete", "NextID.py")

def __init__(self, name):
            self.msg = ("Failed to load dynlib/dll %r. "
                        "Most probably this dynlib/dll was not found "
                        "when the application was frozen.") % name
            self.args = (self.msg,)

def _run():
    global __file__
    import os, site
    sys.frozen = 'macosx_app'
    base = os.environ['RESOURCEPATH']

    argv0 = os.path.basename(os.environ['ARGVZERO'])
    script = SCRIPT_MAP.get(argv0, DEFAULT_SCRIPT)

    path = os.path.join(base, script)
    sys.argv[0] = __file__ = path
    if sys.version_info[0] == 2:
        with open(path, 'rU') as fp:
            source = fp.read() + "\n"
    else:
        with open(path, 'rb') as fp:
            encoding = guess_encoding(fp)

        with open(path, 'r', encoding=encoding) as fp:
            source = fp.read() + '\n'

        BOM=b'\xef\xbb\xbf'.decode('utf-8')
        if source.startswith(BOM):
            source = source[1:]
    exec(compile(source, path, 'exec'), globals(), globals())

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def test_get_home_dir_1():
    """Testcase for py2exe logic, un-compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True

    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Lib/IPython/__init__.py"))

    home_dir = path.get_home_dir()
    nt.assert_equal(home_dir, unfrozen)

def test_get_home_dir_2():
    """Testcase for py2exe logic, compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True
    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Library.zip/IPython/__init__.py")).lower()

    home_dir = path.get_home_dir(True)
    nt.assert_equal(home_dir, unfrozen)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def main():
    utils.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = utils.get_config(True)

    daemon.daemon_exec(config)

    utils.print_shadowsocks()

    encrypt.try_cipher(config['password'], config['method'])

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)
        loop.run()
    except (KeyboardInterrupt, IOError, OSError) as e:
        logging.error(e)
        if config['verbose']:
            import traceback
            traceback.print_exc()
        os._exit(1)

def initForm(self):
    self.initButtonBox()
    dataFile = self.installer.dataFile
    self.uninstallThread = UninstallThread(dataFile)
    self.uninstallThread.progressUpdate.connect(self.on_progressUpdate, Qt.QueuedConnection)
    self.becomesVisible.connect(self.on_becomesVisible)
    self.buttonClose.setEnabled(False)
    self.progressBar.setValue(0)

    if not dataFile:
      self.label.setText('devnote: Not in a frozen environment, no uninstall file found')
    else:
      self.label.setText(self.ls('uninstall.processing'))

def getAppPrefix(self, *args):
        ''' Return the location the app is running from'''
        isFrozen = False
        try:
            isFrozen = sys.frozen
        except AttributeError:
            pass
        if isFrozen:
            appPrefix = os.path.split(sys.executable)[0]
        else:
            appPrefix = os.path.split(os.path.abspath(sys.argv[0]))[0]
        if args:
            appPrefix = os.path.join(appPrefix,*args)
        return appPrefix

def teardown_environment():
    """Restore things that were remembered by the setup_environment function
    """
    (oldenv, os.name, sys.platform, path.get_home_dir, IPython.__file__, old_wd) = oldstuff
    os.chdir(old_wd)
    reload(path)

    for key in list(env):
        if key not in oldenv:
            del env[key]
    env.update(oldenv)
    if hasattr(sys, 'frozen'):
        del sys.frozen

# Build decorator that uses the setup_environment/setup_environment

def test_get_home_dir_1():
    """Testcase for py2exe logic, un-compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True

    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Lib/IPython/__init__.py"))

    home_dir = path.get_home_dir()
    nt.assert_equal(home_dir, unfrozen)

def test_get_home_dir_2():
    """Testcase for py2exe logic, compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True
    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Library.zip/IPython/__init__.py")).lower()

    home_dir = path.get_home_dir(True)
    nt.assert_equal(home_dir, unfrozen)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)
    daemon.daemon_exec(config)
    dns_resolver = asyncdns.DNSResolver()
    loop = eventloop.EventLoop()
    dns_resolver.add_to_loop(loop)
    _config = config.copy()
    _config["local_port"] = _config["tunnel_port"]
    logging.info("starting tcp tunnel at %s:%d forward to %s:%d" %
                 (_config['local_address'], _config['local_port'],
                  _config['tunnel_remote'], _config['tunnel_remote_port']))
    tunnel_tcp_server = tcprelay.TCPRelay(_config, dns_resolver, True)
    tunnel_tcp_server._is_tunnel = True
    tunnel_tcp_server.add_to_loop(loop)
    logging.info("starting udp tunnel at %s:%d forward to %s:%d" %
                 (_config['local_address'], _config['local_port'],
                     _config['tunnel_remote'], _config['tunnel_remote_port']))
    tunnel_udp_server = udprelay.UDPRelay(_config, dns_resolver, True)
    tunnel_udp_server._is_tunnel = True
    tunnel_udp_server.add_to_loop(loop)

    def handler(signum, _):
        logging.warn('received SIGQUIT, doing graceful shutting down..')
        tunnel_tcp_server.close(next_tick=True)
        tunnel_udp_server.close(next_tick=True)
    signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

    def int_handler(signum, _):
        sys.exit(1)
    signal.signal(signal.SIGINT, int_handler)

    daemon.set_user(config.get('user', None))
    loop.run()

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)
    daemon.daemon_exec(config)

    logging.info("starting local at %s:%d" %
                 (config['local_address'], config['local_port']))

    dns_resolver = asyncdns.DNSResolver()
    tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
    udp_server = udprelay.UDPRelay(config, dns_resolver, True)
    loop = eventloop.EventLoop()
    dns_resolver.add_to_loop(loop)
    tcp_server.add_to_loop(loop)
    udp_server.add_to_loop(loop)

    def handler(signum, _):
        logging.warn('received SIGQUIT, doing graceful shutting down..')
        tcp_server.close(next_tick=True)
        udp_server.close(next_tick=True)
    signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

    def int_handler(signum, _):
        sys.exit(1)
    signal.signal(signal.SIGINT, int_handler)

    daemon.set_user(config.get('user', None))
    loop.run()

def teardown_environment():
    """Restore things that were remembered by the setup_environment function
    """
    (oldenv, os.name, sys.platform, path.get_home_dir, IPython.__file__, old_wd) = oldstuff
    os.chdir(old_wd)
    reload(path)

    for key in list(env):
        if key not in oldenv:
            del env[key]
    env.update(oldenv)
    if hasattr(sys, 'frozen'):
        del sys.frozen

# Build decorator that uses the setup_environment/setup_environment

def test_get_home_dir_1():
    """Testcase for py2exe logic, un-compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True

    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Lib/IPython/__init__.py"))

    home_dir = path.get_home_dir()
    nt.assert_equal(home_dir, unfrozen)

def test_get_home_dir_2():
    """Testcase for py2exe logic, compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True
    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Library.zip/IPython/__init__.py")).lower()

    home_dir = path.get_home_dir(True)
    nt.assert_equal(home_dir, unfrozen)

def teardown_environment():
    """Restore things that were remembered by the setup_environment function
    """
    (oldenv, os.name, sys.platform, path.get_home_dir, IPython.__file__, old_wd) = oldstuff
    os.chdir(old_wd)
    reload(path)

    for key in list(env):
        if key not in oldenv:
            del env[key]
    env.update(oldenv)
    if hasattr(sys, 'frozen'):
        del sys.frozen

# Build decorator that uses the setup_environment/setup_environment

def test_get_home_dir_1():
    """Testcase for py2exe logic, un-compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True

    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Lib/IPython/__init__.py"))

    home_dir = path.get_home_dir()
    nt.assert_equal(home_dir, unfrozen)

def test_get_home_dir_2():
    """Testcase for py2exe logic, compressed lib
    """
    unfrozen = path.get_home_dir()
    sys.frozen = True
    #fake filename for IPython.__init__
    IPython.__file__ = abspath(join(HOME_TEST_DIR, "Library.zip/IPython/__init__.py")).lower()

    home_dir = path.get_home_dir(True)
    nt.assert_equal(home_dir, unfrozen)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)
    logging.info("local start with protocol[%s] password [%s] method [%s] obfs [%s] obfs_param [%s]" %
            (config['protocol'], config['password'], config['method'], config['obfs'], config['obfs_param']))

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def __init__(self):
        """Finds available plugins by discovering any class that implements the PluginBase abstract class.

        Returns PluginsFinder: An object encapsulating the list of available sslyze plugin classess.
        """
        self._plugin_classes = set([])
        self._commands = {}
        self._aggressive_comands = []


        if hasattr(sys,"frozen") and sys.frozen in ("windows_exe", "console_exe"):
            # For py2exe builds we have to load the plugins statically using a hardcoded list
            plugin_modules = self.get_plugin_modules_static()
        else:
            # When ran from the interpreter, just dynamically find the available plugins
            plugin_modules = self.get_plugin_modules_dynamic()

        for module in plugin_modules:
            # Check every declaration in that module
            for name in dir(module):
                obj = getattr(module, name)

                if inspect.isclass(obj):
                    # A class declaration was found in that module; checking if it's a subclass of PluginBase
                    # Discarding PluginBase as a subclass of PluginBase
                    if obj != sslyze.plugins.plugin_base.PluginBase:
                        for base in obj.__bases__:
                            # H4ck because issubclass() doesn't seem to work as expected on Linux
                            # It has to do with PluginBase being imported multiple times (within plugins) or something
                            if base.__name__ == 'PluginBase':
                                # A plugin was found, keep it
                                self._plugin_classes.add(obj)

                        #if issubclass(obj, plugins.PluginBase.PluginBase):
                            # A plugin was found, keep it
                        #    self._plugin_classes.add(obj)

                                # Store the plugin's commands
                                for (cmd, is_aggressive) in obj.get_interface().get_commands_as_text():
                                    self._commands[cmd] = obj
                                    # Store a list of aggressive commands
                                    if is_aggressive:
                                        self._aggressive_comands.append(cmd)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)
    logging.info("local start with protocol[%s] password [%s] method [%s] obfs [%s] obfs_param [%s]" %
            (config['protocol'], config['password'], config['method'], config['obfs'], config['obfs_param']))

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def find_library(self, path):
        '''Implements the dylib search as specified in Apple documentation:

        http://developer.apple.com/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryUsageGuidelines.html

        Before commencing the standard search, the method first checks
        the bundle's ``Frameworks`` directory if the application is running
        within a bundle (OS X .app).
        '''

        libname = os.path.basename(path)
        search_path = []

        if '.' not in libname:
            libname = 'lib' + libname + '.dylib'

        # py2app support
        if (hasattr(sys, 'frozen') and sys.frozen == 'macosx_app' and
                'RESOURCEPATH' in os.environ):
            search_path.append(os.path.join(
                os.environ['RESOURCEPATH'],
                '..',
                'Frameworks',
                libname))

        # pyinstaller.py sets sys.frozen to True, and puts dylibs in
        # Contents/MacOS, which path pyinstaller puts in sys._MEIPASS
        if (hasattr(sys, 'frozen') and hasattr(sys, '_MEIPASS') and
                sys.frozen == True and pyglet.compat_platform == 'darwin'):
            search_path.append(os.path.join(sys._MEIPASS, libname))

        if '/' in path:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])
        else:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.ld_library_path])
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])

        for path in search_path:
            if os.path.exists(path):
                return path

        return None

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def find_library(self, path):
        '''Implements the dylib search as specified in Apple documentation:

        http://developer.apple.com/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryUsageGuidelines.html

        Before commencing the standard search, the method first checks
        the bundle's ``Frameworks`` directory if the application is running
        within a bundle (OS X .app).
        '''

        libname = os.path.basename(path)
        search_path = []

        if '.' not in libname:
            libname = 'lib' + libname + '.dylib'

        # py2app support
        if (hasattr(sys, 'frozen') and sys.frozen == 'macosx_app' and
                'RESOURCEPATH' in os.environ):
            search_path.append(os.path.join(
                os.environ['RESOURCEPATH'],
                '..',
                'Frameworks',
                libname))

        # pyinstaller.py sets sys.frozen to True, and puts dylibs in
        # Contents/MacOS, which path pyinstaller puts in sys._MEIPASS
        if (hasattr(sys, 'frozen') and hasattr(sys, '_MEIPASS') and
                sys.frozen == True and pyglet.compat_platform == 'darwin'):
            search_path.append(os.path.join(sys._MEIPASS, libname))

        if '/' in path:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])
        else:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.ld_library_path])
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])

        for path in search_path:
            if os.path.exists(path):
                return path

        return None

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def initialize_debug_mode(self, mode, logdir = None):
        # on windows systems all output to stdout goes to a black hole
        # if py2exe is used.
        # so we use a normal window and redirect output from sys.stderr
        # and sys.stdout. it is easier to use for windows users.
        #
        # but we have to do a second trick to get the output from the logging
        # module WITHOUT (!) writing the output twice, one in the window, one
        # to stderr/console/py2exe:
        # removing the handlers from the root logger and reinitialized via
        # logging.basicConfig
        # there is no other way to prevent py2exe showing a error message and
        # generating the .log file in the installation directory
        try:
            if os.name == 'nt' or os.name.startswith('win'): # win32, win64
                if mode:
                    if self.debugWindow is None:
                        self.debugWindow = DebugWindow(None)
                    if not self.windowredirector:
                        self.windowredirector = DebugWindowRedirector(self.debugWindow, logdir)
                    else:
                        self.windowredirector.set_logdir(logdir)
                    sys.stderr = sys.stdout = self.windowredirector
                    # resetting default logging configuration
                    logging.getLogger().handlers = []
                    logging.basicConfig(stream = sys.stderr, format='%(asctime)s: %(levelname)s: %(name)s(%(module)s:%(lineno)d): %(message)s', datefmt='%Y-%m-%dT%H:%M:%S')
                elif hasattr(sys, 'frozen') and sys.frozen == 'windows_exe':
                    # if a windows exe is build via py2exe, redirect all output
                    if not self.blackholebuffer:
                        self.blackholebuffer = DebugBlackholeBufferRedirector(sys.stderr, logdir)
                    else:
                        self.blackholebuffer.set_logdir(logdir)
                    sys.stderr = sys.stdout = self.blackholebuffer
                    # resetting default logging configuration
                    logging.getLogger().handlers = []
                    logging.basicConfig(stream = sys.stderr, format='%(asctime)s: %(levelname)s: %(name)s(%(module)s:%(lineno)d): %(message)s', datefmt='%Y-%m-%dT%H:%M:%S')
        except:
            log.exception('')

#
# used on windows systems
# shows a windows with a text view which displays the
# debug output provided by DebugWindowRedirector
#

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)
    logging.info("local start with protocol[%s] password [%s] method [%s] obfs [%s] obfs_param [%s]" %
            (config['protocol'], config['password'], config['method'], config['obfs'], config['obfs_param']))

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)
    logging.info("local start with protocol[%s] password [%s] method [%s] obfs [%s] obfs_param [%s]" %
            (config['protocol'], config['password'], config['method'], config['obfs'], config['obfs_param']))

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def main():
    shell.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = shell.get_config(True)

    if not config.get('dns_ipv6', False):
        asyncdns.IPV6_CONNECTION_SUPPORT = False

    daemon.daemon_exec(config)

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)

        def int_handler(signum, _):
            sys.exit(1)
        signal.signal(signal.SIGINT, int_handler)

        daemon.set_user(config.get('user', None))
        loop.run()
    except Exception as e:
        shell.print_exception(e)
        sys.exit(1)

def find_library(self, path):
        '''Implements the dylib search as specified in Apple documentation:

        http://developer.apple.com/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryUsageGuidelines.html

        Before commencing the standard search, the method first checks
        the bundle's ``Frameworks`` directory if the application is running
        within a bundle (OS X .app).
        '''

        libname = os.path.basename(path)
        search_path = []

        if '.' not in libname:
            libname = 'lib' + libname + '.dylib'

        # py2app support
        if (hasattr(sys, 'frozen') and sys.frozen == 'macosx_app' and
                'RESOURCEPATH' in os.environ):
            search_path.append(os.path.join(
                os.environ['RESOURCEPATH'],
                '..',
                'Frameworks',
                libname))

        # pyinstaller.py sets sys.frozen to True, and puts dylibs in
        # Contents/MacOS, which path pyinstaller puts in sys._MEIPASS
        if (hasattr(sys, 'frozen') and hasattr(sys, '_MEIPASS') and
                sys.frozen == True and pyglet.compat_platform == 'darwin'):
            search_path.append(os.path.join(sys._MEIPASS, libname))

        if '/' in path:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])
        else:
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.ld_library_path])
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_library_path])
            search_path.append(path)
            search_path.extend(
                [os.path.join(p, libname) \
                    for p in self.dyld_fallback_library_path])

        for path in search_path:
            if os.path.exists(path):
                return path

        return None