Flask-Security user_registered Signal Not Received in Python 3.3, but works in 2.7 -

i'm trying use user_registered signal in order set default roles users when register using flask-security in following link: setting default role in flask security

in searches can see there bug addressed in flask-security: not getting signal flask-security, fix - user_registered signal problem

i've tried following prove if signal received handler without luck:

@user_registered.connect_via(app) def user_registered_sighandler(sender, **extra):     print("print-user_registered_sighandler:", extra) 

this, however, never gets called though user gets registered , signal should sent.

if helps i've set flask-security configuration follows:

app.config['security_registerable'] = true app.config['security_confirmable'] = false app.config['security_send_register_email'] = false app.config['security_changeable'] = true app.config['security_send_password_change_email'] = false 

signals flask-login , flask-principal working me managed confirm following code snippets print when signals sent:

@user_logged_out.connect_via(app) def on_user_logged_out(sender, user):     print('user log out: made in',user)  @identity_changed.connect_via(app) def identity_changed_ok(sender,identity):     print('identity changed:',identity) 

for setup using python 3.3 (anaconda) , using following: flask==0.10.1,flask-login==0.2.11,flask-principal==0.4.0,flask-security==1.7.4,blinker==1.3. having looked @ signals in both flask-login , flask-security i'm not sure why flask-security signals not working.

edit:

if add print(user_registered.receivers) route in app show have receiver: {139923381372400: <function user_registered_sighandler @ 0x7f42737145f0>}. if put same print statement within registerable.py of flask-security before user_registered.send(app._get_current_object(),user=user, confirm_token=token) lists no receivers: {}

edit2:

problem appears related using python 3.3. created python 2.7 environment , user_registered code worked expected.

full code reproduce:

from flask import flask,render_template playhouse.flask_utils import flaskdb import os flask.ext.security import security, peeweeuserdatastore flask.ext.security.signals import user_registered flask.ext.login import user_logged_out peewee import * playhouse.signals import model flask.ext.security import usermixin,rolemixin  app = flask(__name__)  app.config['admin_password']='secret' app.config['app_dir']=os.path.dirname(os.path.realpath(__file__)) app.config['database']='sqliteext:///%s' % os.path.join(app.config['app_dir'], 'blog.db') app.config['secret_key'] = 'shhh, secret!' app.config['security_registerable'] = true app.config['security_confirmable'] = false app.config['security_send_register_email'] = false  flask_db = flaskdb() flask_db.init_app(app) database = flask_db.database  class basemodel(model):     class meta:         database=flask_db.database   class user(basemodel, usermixin):     email=charfield()     password=charfield()     active = booleanfield(default=true)     confirmed_at = datetimefield(null=true)      def is_active(self):         return true      def is_anonymous(self):         return false      def is_authenticated(self):         return true   class role(basemodel, rolemixin):     name = charfield(unique=true)     description = textfield(null=true)   class userroles(basemodel):     user = foreignkeyfield(user, related_name='roles')     role = foreignkeyfield(role, related_name='users')     name = property(lambda self: self.role.name)     description = property(lambda self: self.role.description)   user_datastore = peeweeuserdatastore(database, user, role, userroles) security = security(app, user_datastore)  @user_registered.connect_via(app) def user_registered_sighandler(sender,**extra):     print("print-user_registered_sighandler")  @user_logged_out.connect_via(app) def on_user_logged_out(sender, user):     print('user log out: made in',user)  @app.route('/') def index():     print(user_registered.receivers)     return render_template('base.html')  database.create_tables([user,role,userroles], safe=true) app.run(debug=true) 

base.html template:

<!doctype html> <html>   <head>     <title>blog</title>   </head>   <body>           <ul>             {% if current_user.is_authenticated() %}               <li><a href="{{ url_for('security.logout',next='/') }}">log out</a></li>               <li><a href="{{ url_for('security.register') }}">register</a></li>         {% else %}         <li><a href="{{ url_for('security.login',next='/') }}">login</a></li>         <li><a href="{{ url_for('security.register') }}">register</a></li>             {% endif %}             {% block extra_header %}{% endblock %}           </ul>   </body> </html> 

i able like:

security = security(app, user_datastore,          register_form=extendedregisterform)   @user_registered.connect_via(app) def user_registered_sighandler(app, user, confirm_token):     default_role = user_datastore.find_role("pending")     user_datastore.add_role_to_user(user, default_role)     db.session.commit()