WTForms error:TypeError: formdata should be a multidict-type wrapper

问题:

from wtforms import Form, BooleanField, TextField, validators,PasswordField class LoginForm(Form):     username     = TextField('Username', [validators.Length(min=4, max=25)])     password = PasswordField('Password') 

when i use LoginForm on webapp(gae) like this :

def post(self):     form=LoginForm(self.request) 

but it show error :

Traceback (most recent call last):   File "D:\Program Files\Google\google_appengine\google\appengine\ext\webapp\__init__.py", line 513, in __call__     handler.post(*groups)   File "D:\zjm_code\forum_blog_gae\main.py", line 189, in post     form=LoginForm(self.request)   File "D:\zjm_code\forum_blog_gae\wtforms\form.py", line 161, in __call__     return type.__call__(cls, *args, **kwargs)   File "D:\zjm_code\forum_blog_gae\wtforms\form.py", line 214, in __init__     self.process(formdata, obj, **kwargs)   File "D:\zjm_code\forum_blog_gae\wtforms\form.py", line 85, in process     raise TypeError("formdata should be a multidict-type wrapper that supports the 'getlist' method") TypeError: formdata should be a multidict-type wrapper that supports the 'getlist' method 

how to make it running

thanks

回答1:

You are supposed to pass in self.request.form (the actual form fields, not the entire request)

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