选择字段生成 [不是有效的选择] 错误时我尝试提交表单

Question

forms.pyclass myForm(FlaskForm):     ...     time = SelectField('Hour', choices=[(8, "8AM"), (9,"9AM"), (10,"10AM"), (11,"11AM"), (12,"12PM"), (13,"1PM"), (14,"2PM"), (15,"3PM"), (16,"4PM"), (17,"5PM"), (18,"6PM")])     ...routes.pyform = RequestCalendarAppointment()if form.validate_on_submit():     print('Form validated')形式.html...<p>     {{ form.time.label() }}<br>     {{ form.time() }}     {% for error in form.time.errors %}     <span style="color: red;">[{{ error }}]</span>     {% endfor %}</p>...我所有的字符串字段和整数字段都有效;但是，当我尝试提交选定字段时间的表单时，我的HTML页面中出现错误。我希望“8AM”显示在html页面（确实如此）中，并将8保存在表单.time.data中。[Not a valid choice]

Answer 1

对于“选定字段”选项，我使用字符串而不是整数