clean_email needs to return the cleaned email regardless of whatever else
it does.  This clean_email returns email when it's valid but not when it
isn't.  This means that whatever Django internals are expecting, and trying
to operate upon, its return value are throwing exceptions instead.  This is
also why the behavior is intermittent - you only see it with invalid
emails. --ay


On Tue, Jun 3, 2014 at 8:24 PM, Gloria W <gloriaj...@gmail.com> wrote:

> This is the strangest bug I've seen in Django. (1.6.4 on Ubuntu 14.04,
> Python 2.7.6)
>  It is sporadic, but once it starts happening, it is consistent until I
> restart the process.
> To try and debug it, I print the value of self.cleaned_data just before it
> occurs. The value prints fine.
>
>
> The code:
>
>     def clean_email(self):
>         logger.warn("Debugging Attribute error:%s" %
> pprint.pformat(self.cleaned_data))
>         try:
>             FytUser.objects.get(email=self.cleaned_data['email'])
>             raise forms.ValidationError('A user with that email address
> already exists.')
>         except FytUser.DoesNotExist:
>             return self.cleaned_data['email']
>
>
> The traceback in the uwsgi logs:
>
> Debugging Attribute error:{'email': u't...@test.net'}
>
> Traceback (most recent call last):
>
>   File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", 
> line 114, in get_response
>     response = wrapped_callback(request, *callback_args, **callback_kwargs)
>
>   File "./registration/views.py", line 54, in preregister_check
>     if form.is_valid():
>
>   File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py", line 
> 129, in is_valid
>     return self.is_bound and not bool(self.errors)
>
>   File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py", line 
> 121, in errors
>     self.full_clean()
>
>   File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py", line 
> 273, in full_clean
>     self._clean_fields()
>
>   File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py", line 
> 291, in _clean_fields
>     value = getattr(self, 'clean_%s' % name)()
>
>   File "./fyt/forms.py", line 87, in clean_email
>     FytUser.objects.get(email=self.cleaned_data['email'])
>
>   File "/usr/local/lib/python2.7/dist-packages/django/db/models/manager.py", 
> line 151, in get
>     return self.get_queryset().get(*args, **kwargs)
>
>   File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py", 
> line 307, in get
>     self.model._meta.object_name)
>
> TypeError: 'exceptions.AttributeError' object is not callable
>
>
> <WSGIRequest
> path:*/prereg_check/*,
> GET:<QueryDict: {}>,
> POST:<QueryDict: {u'birthday_year': [u'1900'], u'password2': [u'xxxxx'], 
> u'last_name': [u'W'], u'is_member': [u'1'], u'gender': [u'2'], u'first_name': 
> [u'G'], u'birthday_day': [u'01'], u'birthday_month': [u'01'], 
> u'csrfmiddlewaretoken': [u'MYKnPppKtnKV4ybQ86rkYsv8Er2LIc1a'], u'password': 
> [u'xxxxx'], u'email': [u't...@test.net <aa...@comcast.net>'], 
> u'discount_code': [u'']}>,
> COOKIES:{'_ga': 'xxxxxxx',
>  'csrftoken': 'xxxxxxxxx',
>  'sessionid': 'xxxxxx',
>  'signup_modal': 'true'},
> META:{'CONTENT_LENGTH': '221',
>  'CONTENT_TYPE': 'application/x-www-form-urlencoded; charset=UTF-8',
>  u'CSRF_COOKIE': u'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
>  'DOCUMENT_ROOT': '/home/xxxxxx',
>  'HTTP_ACCEPT': 'application/json, text/javascript, */*; q=0.01',
>  'HTTP_ACCEPT_ENCODING': 'gzip, deflate',
>  'HTTP_ACCEPT_LANGUAGE': 'en-US,en;q=0.5',
>  'HTTP_CACHE_CONTROL': 'no-cache',
>  'HTTP_CONNECTION': 'keep-alive',
>  'HTTP_CONTENT_LENGTH': '221',
>  'HTTP_CONTENT_TYPE': 'application/x-www-form-urlencoded; charset=UTF-8',
>  'HTTP_COOKIE': 'csrftoken=xxxxxxxxxxx; sessionid=xx; _ga=xxxxxx; 
> signup_modal=true',
>  'HTTP_HOST': 'findyourtrainer.com',
>  'HTTP_PRAGMA': 'no-cache',
>  'HTTP_REFERER': 'https://xxxxx/register?next=/ 
> <https://findyourtrainer.com/register?next=/>',
>  'HTTP_USER_AGENT': 'Mozilla/5.0 (X11; Linux x86_64; rv:29.0) Gecko/20100101 
> Firefox/29.0',
>  'HTTP_X_REQUESTED_WITH': 'XMLHttpRequest',
>  'PATH_INFO': u'*/prereg_check/*',
>  'QUERY_STRING': '',
>  'REMOTE_ADDR': 'xxxxxxxxxxxxxxxx',
>  'REMOTE_PORT': '37998',
>  'REQUEST_METHOD': 'POST',
>  'REQUEST_URI': '*/prereg_check/*',
>  u'SCRIPT_NAME': u'',
>  'SERVER_NAME': 'xxxx.com',
>  'SERVER_PORT': '443',
>  'SERVER_PROTOCOL': 'HTTP/1.1',
>  'UWSGI_SCHEME': 'https',
>  'uwsgi.node': 'xxxxxxxxxxxx.com',
>  'uwsgi.version': '2.0.4',
>  'wsgi.errors': <open file 'wsgi_errors', mode 'w' at 0x7f720e9dc150>,
>  'wsgi.file_wrapper': <built-in function uwsgi_sendfile>,
>  'wsgi.input': <uwsgi._Input object at 0x7f72072c3a50>,
>  'wsgi.multiprocess': True,
>  'wsgi.multithread': False,
>  'wsgi.run_once': False,
>  'wsgi.url_scheme': 'https',
>  'wsgi.version': (1, 0)}>
>
>
> This looks like a memory leak to me. Has anyone else seen this?
> Thanks in advance,
> ~G~
>
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-- 
Andromeda Yelton
Board of Directors, Library & Information Technology Association:
http://www.lita.org
Advisor, Ada Initiative: http://adainitiative.org
http://andromedayelton.com
@ThatAndromeda <http://twitter.com/ThatAndromeda>

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