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I'm trying to follow the Flask Mega Tutorial for which I need to use WTForms. As is suggested in the tutorial, I use a virtualenv in which I installed WTForms like this:

flask/bin/pip install flask-wtf

This seemed to work fine, and when I now run it again I simply get this:

Requirement already satisfied (use --upgrade to upgrade): flask-wtf in ./flask/lib/python2.7/site-packages
Requirement already satisfied (use --upgrade to upgrade): Flask in ./flask/lib/python2.7/site-packages (from flask-wtf)
Requirement already satisfied (use --upgrade to upgrade): WTForms>=1.0 in ./flask/lib/python2.7/site-packages (from flask-wtf)
Requirement already satisfied (use --upgrade to upgrade): Werkzeug>=0.7 in ./flask/lib/python2.7/site-packages (from Flask->flask-wtf)
Requirement already satisfied (use --upgrade to upgrade): Jinja2>=2.4 in ./flask/lib/python2.7/site-packages (from Flask->flask-wtf)
Requirement already satisfied (use --upgrade to upgrade): itsdangerous>=0.21 in ./flask/lib/python2.7/site-packages (from Flask->flask-wtf)
Requirement already satisfied (use --upgrade to upgrade): markupsafe in ./flask/lib/python2.7/site-packages (from Jinja2>=2.4->Flask->flask-wtf)
Cleaning up...

But when I try to import forms using from forms import LoginForm I get an error saying: ImportError: cannot import name LoginForm.

Does anybody know what I'm doing wrong here, and how I can solve this? All tips are welcome!

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1 回答 1

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您需要一个名为的模块forms，其中包含LoginForm，

from flask.ext.wtf import Form
from wtforms import TextField, BooleanField
from wtforms.validators import Required

class LoginForm(Form):
    openid = TextField('openid', validators = [Required()])
    remember_me = BooleanField('remember_me', default = False)

这是取自第 iii 部分的示例。

于 2013-12-19T10:18:20.347 回答