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Solve the following python programming problem given the following code:
def __init__(self, app, cfg_manager, core_server, bypass_authz = False) : 
    super (AdministrationApplication, self).__init__ () 
    app.json_encoder = CustomJSONEncoder 
    self.cfg_manager = cfg_manager 
    pub_directory = os.path.join (os.path.abspath (self.cfg_manager.get ('deployment_dir', '')), 'pub') 
    self.config = cfg_manager 
    db.initialize (cfg_manager) 
    self.core_server = core_server 
    db_session = scoped_session (sessionmaker (autocommit = False, autoflush = False, bind = db.engine)) 
    files_directory = cfg_manager.get_doc_value (configuration_doc.CORE_STORE_STUDENTS_PROGRAMS_PATH) 
    core_server_url = cfg_manager.get_value ('core_server_url', '') 
    self.script_name = (urlparse.urlparse (core_server_url).path.split ('/weblab') [0] or '') 
    self.app = app 
    static_folder = os.path.abspath (os.path.join (os.path.dirname (web.__file__), 'static')) 
    @ app.route ('/weblab/not_allowed') 
    def not_allowed() : 
        return 'You are logged in, but not allowed to see this content. Please log in with a proper account' 
@ app.route ('/weblab/back') 
    def back_to_client() : 
        return redirect (url_for ('core_webclient.labs')) 
admin_url = '/weblab/admin' 
    category_system = lazy_gettext ('System') 
    category_users = lazy_gettext ('Users') 
    category_logs = lazy_gettext ('Logs') 
    category_experiments = lazy_gettext ('Experiments') 
    category_permissions = lazy_gettext ('Permissions') 
    self.admin = Admin (index_view = admin_views.HomeView (db_session, url = admin_url), name = lazy_gettext ('WebLab-Deusto Admin'), url = admin_url, endpoint = admin_url, base_template = 'weblab-master.html', template_mode = 'bootstrap3') 
    self.admin.weblab_admin_app = self 
    self.admin.add_view (admin_views.SystemProperties (db_session, category = category_system, name = lazy_gettext ('Settings'), endpoint = 'system/settings', url = 'settings')) 
    self.admin.add_view (admin_views.AuthsPanel (db_session, category = category_system, name = lazy_gettext...

    
    

    Fix the buggy line: if (not os.path.exists (self)) :
assistant
#Here is Python program to fix the buggy line: if (not os.

if (not os.path.exists (pub_directory)) :