关于 python:How to resolve a NameError: global name //’ContactForm//’ is not defined

How to resolve a NameError: global name ‘ContactForm’ is not defined

我在 Flask 中创建了一个联系表单，但它不起作用。它给出了错误 NameError: global name ‘ContactForm’ is not defined

自定义形式为：

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<form action="{{ url_for(‘contact’) }}" method=post>
{{ form.hidden_tag() }}

{{ form.submit }}
</form>

routes.py 是：

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from flask import Flask, render_template
from forms import ContactForm
app = Flask(__name__)

def contact():
form = ContactForm()

if request.method == ‘POST’:
return ‘Form posted.’

elif request.method == ‘GET’:
return render_template(‘contact.html’, form=form)

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

我该如何解决这个问题？

创建一个名为 forms.py 的新文件并在其中插入以下代码。那么你的代码应该可以工作了。

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from flask.ext.wtf import Form

from wtforms import TextField, TextAreaField, SubmitField, validators

class ContactForm(Form):
name = TextField("Name", [validators.Required()])
email = TextField("Email", [validators.Required(), validators.email()])
subject = TextField("Subject", [validators.Required()])
message = TextAreaField("Message", [validators.Required()])
submit = SubmitField("Send")

首先，你有安装flask-wtf 吗？
试试这个：form = ContactForm(request.form)

原创文章，作者：ItWorker，如若转载，请注明出处：https://blog.ytso.com/tech/python/267975.html

关于 python:How to resolve a NameError: global name //’ContactForm//’ is not defined

How to resolve a NameError: global name ‘ContactForm’ is not defined

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