小编Rus*_*ava的帖子

我将 WTForms 与 Flask 结合使用，我想集成Bootstrap 表单验证来检查表单中的错误。我有一个基本的登录表单设置，如下所示：

class LoginForm(FlaskForm):
    """Login form."""

    email = EmailField(
        "Email Address", validators=[DataRequired(), Email(), Length(min=6, max=40)]
    )
    password = PasswordField(
        "Password", validators=[DataRequired()]
    )

    def __init__(self, *args, **kwargs):
        """Create instance."""
        super(LoginForm, self).__init__(*args, **kwargs)
        self.user = None

    def validate(self):
        """Validate the form."""
        initial_validation = super(LoginForm, self).validate()
        if not initial_validation:
            return False

        self.user = User.query.filter_by(email=self.email.data).first()
        if not self.user:
            self.email.errors.append("Unknown email address!")
            return False

        if not self.user.check_password(self.password.data):
            self.password.errors.append("Invalid password!")
            return False

        if not self.user.verified:
            self.email.errors.append("Please verify your email address!") …

我正在使用Jupyter Notebooks学习Python。我想连接到通过MAMP本地托管的MySQL数据库。我将如何处理？