help please i can not register even to log in it raise ValueError (user aready exist) while i can't log in

from flask_bcrypt import check_password_hash from flask import (Flask, g, flash, render_template, redirect, url_for) from flask_login import (LoginManager, login_user, logout_user, login_required, current_user)

import forms import models

DEBUG = True PORT = 8000 HOST = '192.168.43.12'

app = Flask(name) app.secret_key = 'auoesh,jahskd,alkjds,k_swekdius'

login_manager =LoginManager() login_manager.init_app(app) login_manager.login_view = 'login'

@login_manager.user_loader def load_user(userid): try: return models.User.get(models.User.id == userid) except models.DoesNotExist: return None

@app.before_request def before_request(): """connect to the data base before each request""" g.db = models.DATABASE g.db.connect() g.user = current_user

@app.after_request def after_request(response): """close to the data base each after request""" g.db.close() return response

@app.route('/register', methods = ('GET', 'POST')) def register(): form = forms.RegisterForm() if form .validate_on_submit(): flash("Wow ,you registered" , "success") models.User.create_user( username = form.username.data, email = form.email.data, password = form.password.data ) return redirect(url_for('index')) return render_template('register.html', form = form)

@app.route('/login', methods = ('GET', 'POST')) def login(): form = forms.LoginForm() if form.validate_on_submit(): try: user = models.User.get(models.User.email == form.email.data) except models.DoesNotExist: flash("your email or password doesn't match", "error") else: if check_password_hash(user.password, form.password.data): login_user(user) flash("you have been logged in", "success") return redirect(url_for('index')) else: flash("your email or password doesn't match", "error") return render_template('login.html',form=form)

@app.route('/logout') @login_required def logout(): logout_user() flash("you have been logged out come back soon", "success") return redirect(url_for('index'))

@app.route('/new_post', methods = ('GET', 'POST')) @login_required def post(): form = forms.PostForm() if form.validate_on_submit(): models.Post.create(user=g.user._get_current_object(), content = form.content.data.strip()) flash("Message posted!" ,"Thanks!", "success!") return redirect(url_for('index')) return render_template('post.html', form=form)

@app.route('/') def index(): return 'Hey'

if name == 'main': models.initialize()

try:
    models.User.create_user(
        username = 'kennethlove',
        email = "luckiusevodius@gmail.com",
        password = 'password',
        admin = True
    )
except ValueError:
    pass

app.run(debug = DEBUG, host = HOST, port = PORT)