mthorley wrote:
> I just upgraded to django 1.0 and started getting this error. I was
> already using newforms and am quite surprised and dumbfounded by the
> errror. Generally this error would be caused by a missing comma in a
> tuple, but that appears to not be my case.
>
> I added some print statements (to django/forms/fields.py) and even
> over-wrote the variable in question to try and isolate the problem but
> have had no success.
>
> Below is a snip of the code in question, with my added debugging
> statements. Note that even when I override "v" with a tuple containing
> two string, I still get the error.
>
> That almost makes me think something is broken with my python install,
> however when I execute a similar statement from the python shell, it
> works fine, and when I run the server with a different installation of
> python I still get the error.
>
> Below the code snip is the output I get in my terminal when the below
> code runs. At the bottom of this post is a complete trace back of the
> error.
>
> I'm sure now that I am over looking something very obvious, and would
> be very appreciate to any one who can point it out to me.
>
> Thanks
> --
> matthew
>
> # snip from django/forms/fields.py
> def valid_value(self, value):
> "Check to see if the provided value is a valid choice"
> for k, v in self.choices:
> v = ('test', 'value') # for debugging
> if type(v) in (tuple, list):
> # This is an optgroup, so look inside the group for
> options
> print v, type(v), 'len =', len(v), 'v[0] =', v[0],
> 'v[1] =', v[1] # added for debugging
> for k2, v2 in v:
> if value == smart_unicode(k2):
> return True
> else:
> if value == smart_unicode(k):
> return True
> return False
>
> # server output
> Django version 1.0-final-SVN-783, using settings 'sample.settings'
> Development server is running at http://127.0.0.1:8000/
> Quit the server with CONTROL-C.
> ('test', 'value') <type 'tuple'> len = 2 v[0] = test v[1] = value
> [07/Oct/2008 09:40:59] "POST /free_personality_test/ HTTP/1.1" 500
> 86171
>
> # django traceback
> Environment:
>
> Request Method: POST
> Request URL: http://localhost:8000/free_personality_test/
> Django Version: 1.0-final-SVN-783
> Python Version: 2.5.2
> Installed Applications:
> ['django.contrib.admin',
> 'django.contrib.auth',
> 'django.contrib.comments',
> 'django.contrib.contenttypes',
> 'django.contrib.humanize',
> 'django.contrib.markup',
> 'django.contrib.sessions',
> 'django.contrib.sites',
> 'colorcode.profiler',
> 'colorcode.accounts',
> 'colorcode.email_campaigns',
> 'colorcode.coupons',
> 'colorcode.feedback',
> 'colorcode.registration',
> 'colorcode.accounts',
> 'colorcode.unregistered_users',
> 'colorcode']
> Installed Middleware:
> ('django.middleware.common.CommonMiddleware',
> 'django.contrib.sessions.middleware.SessionMiddleware',
> 'django.contrib.auth.middleware.AuthenticationMiddleware',
> 'djangologging.middleware.LoggingMiddleware',
> 'django.middleware.doc.XViewMiddleware',
> 'django.middleware.transaction.TransactionMiddleware',
> 'colorcode.profiler.middleware.PersonalityProfileMiddleware')
>
> Traceback:
> File "/Users/matthew/sandbox/cc-django-1.0-integration/lib/django/core/
> handlers/base.py" in get_response
> 86. response = callback(request, *callback_args,
> **callback_kwargs)
> File "/Users/matthew/sandbox/cc-django-1.0-integration/site/colorcode/
> profiler/views.py" in personality_assessment
> 181. strengthslims_form.is_valid() and \
> File "/Users/matthew/sandbox/cc-django-1.0-integration/lib/django/
> forms/forms.py" in is_valid
> 120. return self.is_bound and not bool(self.errors)
> File "/Users/matthew/sandbox/cc-django-1.0-integration/lib/django/
> forms/forms.py" in _get_errors
> 111. self.full_clean()
> File "/Users/matthew/sandbox/cc-django-1.0-integration/lib/django/
> forms/forms.py" in full_clean
> 224. value = field.clean(value)
> File "/Users/matthew/sandbox/cc-django-1.0-integration/lib/django/
> forms/fields.py" in clean
> 648. if not self.valid_value(value):
> File "/Users/matthew/sandbox/cc-django-1.0-integration/lib/django/
> forms/fields.py" in valid_value
> 658. for k2, v2 in v:
>
> Exception Type: ValueError at /free_personality_test/
> Exception Value: too many values to unpack
The issue here is that the for statement expects a *sequence* of
two-element tuples to iterate over and, for whatever reason, it's only
getting a single tuple. Hence the error message.
I hope this gives you a start on finding out what's actually wrong ...
regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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