$ python3 runapp.py 
/home/fanys/blockerbugs/blockerbugs/__init__.py:3: ExtDeprecationWarning: Importing flask.ext.sqlalchemy is deprecated, use flask_sqlalchemy instead.
  from flask.ext.sqlalchemy import SQLAlchemy
/home/fanys/blockerbugs/blockerbugs/__init__.py:4: ExtDeprecationWarning: Importing flask.ext.assets is deprecated, use flask_assets instead.
  from flask.ext.assets import Environment, Bundle
/usr/lib/python3.6/site-packages/webassets/filter/__init__.py:722: UserWarning: Error while loading builtin filter module 'webassets.filter.rjsmin': cannot import name 'rjsmin'
  'module \'%s\': %s' % (module_name, e))
/usr/lib/python3.6/site-packages/flask_assets.py:336: ExtDeprecationWarning: Importing flask.ext.script is deprecated, use flask_script instead.
  from flask.ext import script
/usr/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py:794: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future.  Set it to True or False to suppress this warning.
  'SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and '
/home/fanys/blockerbugs/blockerbugs/controllers/forms.py:24: ExtDeprecationWarning: Importing flask.ext.wtf is deprecated, use flask_wtf instead.
  from flask.ext.wtf import Form
/home/fanys/blockerbugs/blockerbugs/controllers/admin/__init__.py:26: ExtDeprecationWarning: Importing flask.ext.admin is deprecated, use flask_admin instead.
  from flask.ext.admin.babel import gettext
_internal    2018-07-22 15:10:49 INFO     * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)