new_contents: # -*- coding: utf-8 -*-
  from flask.ext.wtf import Form
  from wtforms import StringField, EmailField, PasswordField
  from wtforms.validators import InputRequired, Email, Length, EqualTo
  
  
  class SignUpForm(Form):
  	username = StringField(
  		label=_('username'),
  		validators=[
  		    InputRequired(),
  		    Length(min=3, max=30),
  		]
  	)
  	email = EmailField(
  		label=_('email'),
  		validators=[
  			InputRequired(),
  			Email(),
  		]
  	)
  	password = PasswordField(
  		label=_('password'),
  		validators=[
  		    InputRequired(),
  		    Length(min=6, max=30),
  		]
  	)
  	confirm = PasswordField(
  		label=_('confirm password'),
  		validators=[
  			InputRequired(),
  			EqualTo('password'),
  		]
  	)
subject: add forms