python - Error when calling the metaclass bases -

finding difficult wrap around basic problem. i'm using python 2.7.10 follow flask tutorial being delivered using python 3.4. i'm aware of differences between 2 versions, seems knowledge isn't enough overcome situation. have amateur level experience in python. have feeling got class definition, unable nail it. , yes went through solutions similar error wasn't able relate solution problem.

traceback (most recent call last):   file "manage.py", line 5, in <module>     flask_init import app   file "/users/sapp/desktop/ude/flask_init/__init__.py", line 12, in <module>     author import views   file "/users/sapp/desktop/ude/flask_init/author/views.py", line 3, in     <module>     form import registerform    file "/users/sapp/desktop/ude/flask_init/author/form.py", line 5, in <module>     class registerform(form): typeerror: error when calling metaclass bases module.__init__() takes @ 2 arguments (3 given) 

my directory structure:

├── __init__.py ├── __init__.pyc ├── author │   ├── __init__.py │   ├── __init__.pyc │   ├── form.py │   ├── form.pyc │   ├── models.py │   ├── models.pyc │   ├── views.py │   └── views.pyc ├── blog │   ├── __init__.py │   ├── __init__.pyc │   ├── views.py │   └── views.pyc ├── manage.py ├── requirements.txt ├── settings.py ├── settings.pyc ├── templates │   ├── author │   └── base.html └── venv     ├── bin     ├── include     ├── lib     └── pip-selfcheck.json 

manage.py:

import os, sys  flask_script import manager, server flask_init import app  manager = manager(app)  manager.add_command("runserver", server(         ))  if __name__ == "__main__":     manager.run() 

form.py:

from flask_wtf import form wtforms import validators, stringfield, passwordfield wtforms.fields.html5 import emailfield  class registerform(form):     pass 

init.py:

from flask import flask flask.ext.sqlalchemy import sqlalchemy app = flask(__name__) app.config.from_object('settings') db = sqlalchemy(app) import blog.views author import views 

views.py:

from flask_init import app flask import render_template, redirect form import registerform  @app.route('/register', method=('get', 'post')) def register():     form = registerform()     return render_template('author/register.html', form=form) 

i chose not tag wtforms i'm more concerned i'm missing when comes metaclasses between 2.7 , 3.4.

this has nothing python versions.

you're importing wrong thing in form.py; have form instead of form. former module, latter class, should inheriting from.