WTForms：安装“ email_validator”以获得电子邮件验证支持

运行以下代码进行表单验证时获取异常。

File "/Users/homeduvvuri/Documents/Learning/PartyGoUdemy/PartGo/user/forms.py", line 11, in BaseUserForm
    email = EmailField('Email', [validators.DataRequired(), validators.Email()])
File "/Users/homeduvvuri/Documents/Learning/PartyGoUdemy/PartGo/partgo-env/lib/python3.7/site-packages/wtforms/validators.py", line 332, in __init__
    raise Exception("Install 'email_validator' for email validation support.")
Exception: Install 'email_validator' for email validation support.

在codeanywhere VM上完美运行。不在本地计算机上。

from flask_wtf import FlaskForm
from flask_wtf.file import FileField, FileAllowed
from wtforms import Form, StringField, PasswordField, validators, ValidationError
from wtforms.validators import InputRequired, Email
from wtforms.fields.html5 import EmailField
from wtforms.widgets import TextArea
from user.models import User

class BaseUserForm(FlaskForm):
    name = StringField('Name', [validators.DataRequired(), validators.Length(min=2, max=30)])
    email = EmailField('Email', [validators.DataRequired(), validators.Email()])

如果您看一下第9行的wtforms / validators.py文件：

import email_validator

只需安装软件包：

pip install email_validator

我在最新更新中遇到了同样的问题，尝试安装email_validator和flask-validator并继续出现此异常。通过在Requirements.txt中添加以下行来解决：email-validator == 1.0.5，如[此处]所建议。（https://github.com/alphagov/notifications-admin/commit/5ce2906c5aa6d16）

如果您要安装它wtforms：

pip install wtforms[email]