Well, Form.is_valid calculates the form and returns boolean, thats for sure.
Specifically, "<bound method ContactForm.is_valid of <beppe.forms.ContactForm
object"
means that "is_valid" is a ``method`` bounded to instance of your form class.
Look at this:
>>> from django import forms
>>>
>>> class F(forms.Form):
... name = forms.CharField()
...
>>> f = F()
>>> f.is_valid
<bound method F.is_valid of <__main__.F object at 0x1010cc090>>
>>> f.is_valid()
False
>>> f = F({'name': 'Lukasz'})
>>> f.is_valid()
True
You get your boolean if you ``call`` the "is_valid" method.
On Dec 20, 2009, at 2:17 PM, BobAalsma wrote:
> I'm following the The Django Book 2.0, trying to learn Django.
> I'm on Apple OS X10.5.8, Python 2.5.1.
> I have looked at FAQ, mailing lists, etc. but did not find any
> situation looking like this.
>
> Question:
> although all other parts seem to work as described in the book,
> the .is_valid returns an unexpected non Boolean answer - how to addres
> this?
>
> I'll copy some of my shell log to show you the problem (following a
> part of chapter 8 of The Django Book):
>>>> from beppe.forms import ContactForm
>>>> f = ContactForm()
>>>> f = ContactForm({'subject': 'Hello', 'email': 'a...@a.nl', 'message':
>>>> 'nice site heb je hier'})
>>>> f.is_valid
> <bound method ContactForm.is_valid of <beppe.forms.ContactForm object
> at 0x7ac990>>
>>>> f = ContactForm({'subject': 'Hello', 'email': 'a...@a.nl'})
>>>> f.is_valid
> <bound method ContactForm.is_valid of <beppe.forms.ContactForm object
> at 0x7ac970>>
>>>> f.is_bound
> True
>>>> f.errors
> {'message': [u'This field is required.']}
>>>> f = ContactForm({'subject': 'Hello', 'email': 'a...@a.nl', 'message':
>>>> 'nice site heb je hier'})
>>>> f.errors
> {}
>>>> f.is_bound
> True
>>>> f.is_valid
> <bound method ContactForm.is_valid of <beppe.forms.ContactForm object
> at 0x7ac9f0>>
>
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