帮我写一个python Flask 用户登陆页面

好的，我可以帮您编写一个 Python Flask 用户登录页面。您需要安装 Flask 和 Flask-WTF 扩展程序。以下是示例代码：

from flask import Flask, render_template, redirect, url_for, flash
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField
from wtforms.validators import DataRequired, Length, Email

app = Flask(__name__)
app.config['SECRET_KEY'] = 'your_secret_key_here'

class LoginForm(FlaskForm):
    email = StringField('Email', validators=[DataRequired(), Email()])
    password = PasswordField('Password', validators=[DataRequired(), Length(min=6)])
    submit = SubmitField('Log In')

@app.route('/', methods=['GET', 'POST'])
def login():
    form = LoginForm()
    if form.validate_on_submit():
        # Check if email and password are correct
        if form.email.data == 'your_email_here' and form.password.data == 'your_password_here':
            flash('You have been logged in!', 'success')
            return redirect(url_for('home'))
        else:
            flash('Login unsuccessful. Please check email and password.', 'danger')
    return render_template('login.html', form=form)

@app.route('/home')
def home():
    return '<h1>You are logged in!</h1>'

if __name__ == '__main__':
    app.run(debug=True)

请注意，您需要将 `your_secret_key_here`、`your_email_here` 和 `your_password_here` 替换为您自己的值。此外，您需要创建一个名为 `login.html` 的模板文件，以呈现登录表单。