Cannot set Field to type='hidden' in FormHelper

I have a formset and a formhelp object.

class MyHelper(FormHelper):
         def __init__(self, *args, **kwargs):
             super(MyHelper, self).__init__(*args, **kwargs)
             self.helper = FormHelper()
             self.layout = Layout(
                 Field('set_id', type='hidden', value='0')
             )

When I render this formset, I get this error:

can't set attribute

The line that causes this error is:

/Users/cheng/.virtualenvs/waimai/lib/python2.7/site-packages/crispy_forms/utils.py in render_field
92.                                        field_instance.widget.is_hidden = True 

When I remove the type=‘hidden’ part from the Field definition, everything works. I don’t know why I cannot set this field to hidden. Here is the model definition of this field:

class Answer(models.Model):
    set_id = models.IntegerField()

Thanks for your help!

[kviktor]

Any ETA for PyPI release?

[squ1b3r]

Is this ever going to be released? It’s sitting in the dev branch for two years now.