object has no attribute 'new_objects' error when saving related objects

admin.py

from django.contrib import admin
from django.conf.urls import patterns, url
from django.shortcuts import render_to_response, render
from django.template import RequestContext
from django.core.exceptions import ValidationError
from django.db import transaction, IntegrityError

from .forms import UploadFileForm
from .models import Dataset, Datapoint

from csv import DictReader
from datetime import datetime

import ipdb

class DatapointInline(admin.TabularInline):
    model = Datapoint
    readonly_fields = ('timestamp', 'air_temperature', 'relative_humidity',)

class DatasetAdmin(admin.ModelAdmin):
    form = UploadFileForm
    
    fieldsets = [
        (None, {'fields': ['name', 'datapoints_file']}),
    ]

    inlines = [DatapointInline]
    list_per_page = 10

    def save_formset(self, request, form, formset, change):
        ipdb.set_trace()
        pass

    def save_related(self, request, obj, form, change):
        pass

    def save_model(self, request, obj, form, change):
        obj.save()
        ipdb.set_trace()
        if 'datapoints_file' in request.FILES:
            datapoints_file = request.FILES['datapoints_file']
            try:
                with transaction.atomic():
                    for row in DictReader(datapoints_file, delimiter=','):
                        row['timestamp'] = datetime.strptime(row['timestamp'],'%m/%d/%Y %H:%M').strftime('%Y-%m-%d %H:%M')
                        row['dataset'] = obj
                        # timestamp_string = row['timestamp']
                        # timestamp_string_obj = datetime.strptime(timestamp_string,'%m/%d/%Y %H:%M')
                        # timestamp_string_obj = eastern.localize(timestamp_string_obj)
                        # data.insert(0,int(mktime(timestamp_string_obj.utctimetuple())))
                        datapoint = Datapoint(**row)
                        datapoint.full_clean()
                        datapoint.save()
            except ValidationError as e:
                raise e
            except IntegrityError as e:
                raise e

admin.site.register(Dataset, DatasetAdmin)

Error log

AttributeError at /admin/paxriver/dataset/3/
'DatapointFormFormSet' object has no attribute 'new_objects'
Request Method:	POST
Request URL:	http://localhost:8000/admin/paxriver/dataset/3/
Django Version:	1.7.1
Exception Type:	AttributeError
Exception Value:	
'DatapointFormFormSet' object has no attribute 'new_objects'
Exception Location:	/usr/local/lib/python2.7/dist-packages/django/contrib/admin/options.py in construct_change_message, line 994
Python Executable:	/usr/bin/python
Python Version:	2.7.3
Python Path:	
['/vagrant/mysite',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-linux2',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/pymodules/python2.7',
 '/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode',
 '/usr/local/lib/python2.7/dist-packages/IPython/extensions']
Server time:	Tue, 13 Jan 2015 13:46:47 +0000
Traceback Switch to copy-and-paste view

/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py in get_response
                    response = wrapped_callback(request, *callback_args, **callback_kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/contrib/admin/options.py in wrapper
                return self.admin_site.admin_view(view)(*args, **kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py in _wrapped_view
                    response = view_func(request, *args, **kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/views/decorators/cache.py in _wrapped_view_func
        response = view_func(request, *args, **kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/contrib/admin/sites.py in inner
            return view(request, *args, **kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/contrib/admin/options.py in change_view
        return self.changeform_view(request, object_id, form_url, extra_context) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py in _wrapper
            return bound_func(*args, **kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py in _wrapped_view
                    response = view_func(request, *args, **kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py in bound_func
                return func.__get__(self, type(self))(*args2, **kwargs2) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/db/transaction.py in inner
                return func(*args, **kwargs) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/contrib/admin/options.py in changeform_view
                    change_message = self.construct_change_message(request, form, formsets) ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/contrib/admin/options.py in construct_change_message
                for added_object in formset.new_objects: ...
▶ Local vars
Request information

GET
No GET data
POST
Variable	Value
datapoint_set-89-id	
u'7558'
datapoint_set-TOTAL_FORMS	
u'102'
datapoint_set-3-dataset	
u'3'
datapoint_set-24-id	
u'7493'
datapoint_set-65-dataset	
u'3'
datapoint_set-85-id	
u'7554'
datapoint_set-INITIAL_FORMS	
u'99'
datapoint_set-46-dataset	
u'3'
datapoint_set-81-dataset	
u'3'
datapoint_set-77-id	
u'7546'
datapoint_set-23-dataset	
u'3'
datapoint_set-90-dataset	
u'3'
datapoint_set-60-id	
u'7529'
datapoint_set-59-dataset	
u'3'
datapoint_set-23-id	
u'7492'
datapoint_set-58-id	
u'7527'
datapoint_set-57-dataset	
u'3'
datapoint_set-67-dataset	
u'3'
datapoint_set-87-id	
u'7556'
datapoint_set-6-dataset	
u'3'
datapoint_set-79-dataset	
u'3'
datapoint_set-84-id	
u'7553'
datapoint_set-49-dataset	
u'3'
datapoint_set-84-dataset	
u'3'
datapoint_set-13-id	
u'7482'
datapoint_set-45-dataset	
u'3'
datapoint_set-57-id	
u'7526'
datapoint_set-93-dataset	
u'3'
datapoint_set-22-id	
u'7491'
datapoint_set-35-dataset	
u'3'
datapoint_set-98-dataset	
u'3'
datapoint_set-13-dataset	
u'3'
datapoint_set-96-dataset	
u'3'
datapoint_set-92-id	
u'7561'
datapoint_set-28-dataset	
u'3'
datapoint_set-29-id	
u'7498'
datapoint_set-88-id	
u'7557'
datapoint_set-68-id	
u'7537'
datapoint_set-72-dataset	
u'3'
datapoint_set-64-dataset	
u'3'
datapoint_set-19-id	
u'7488'
datapoint_set-76-dataset	
u'3'
datapoint_set-90-id	
u'7559'
name	
u'MyDataset'
datapoint_set-70-id	
u'7539'
datapoint_set-101-dataset	
u'3'
datapoint_set-2-dataset	
u'3'
datapoint_set-82-dataset	
u'3'
datapoint_set-93-id	
u'7562'
datapoint_set-61-dataset	
u'3'
datapoint_set-68-dataset	
u'3'
datapoint_set-__prefix__-dataset	
u'3'
datapoint_set-22-dataset	
u'3'
datapoint_set-54-id	
u'7523'
datapoint_set-37-dataset	
u'3'
datapoint_set-101-id	
u''
datapoint_set-50-id	
u'7519'
datapoint_set-31-dataset	
u'3'
datapoint_set-37-id	
u'7506'
datapoint_set-60-dataset	
u'3'
datapoint_set-7-dataset	
u'3'
datapoint_set-52-id	
u'7521'
datapoint_set-7-id	
u'7476'
datapoint_set-27-id	
u'7496'
datapoint_set-44-dataset	
u'3'
datapoint_set-69-id	
u'7538'
datapoint_set-73-dataset	
u'3'
datapoint_set-69-dataset	
u'3'
datapoint_set-48-id	
u'7517'
datapoint_set-31-id	
u'7500'
datapoint_set-63-id	
u'7532'
datapoint_set-82-id	
u'7551'
datapoint_set-6-id	
u'7475'
datapoint_set-75-id	
u'7544'
datapoint_set-63-dataset	
u'3'
datapoint_set-99-id	
u''
datapoint_set-86-dataset	
u'3'
datapoint_set-18-dataset	
u'3'
datapoint_set-11-dataset	
u'3'
datapoint_set-__prefix__-id	
u''
datapoint_set-MAX_NUM_FORMS	
u'1000'
datapoint_set-33-dataset	
u'3'
datapoint_set-26-dataset	
u'3'
datapoint_set-20-dataset	
u'3'
datapoint_set-0-id	
u'7469'
datapoint_set-78-dataset	
u'3'
datapoint_set-96-id	
u'7565'
datapoint_set-55-dataset	
u'3'
datapoint_set-14-dataset	
u'3'
datapoint_set-44-id	
u'7513'
datapoint_set-66-dataset	
u'3'
datapoint_set-10-id	
u'7479'
datapoint_set-MIN_NUM_FORMS	
u'0'
datapoint_set-64-id	
u'7533'
datapoint_set-10-dataset	
u'3'
datapoint_set-30-dataset	
u'3'
datapoint_set-80-dataset	
u'3'
datapoint_set-94-id	
u'7563'
datapoint_set-26-id	
u'7495'
datapoint_set-56-id	
u'7525'
datapoint_set-97-id	
u'7566'
datapoint_set-16-dataset	
u'3'
datapoint_set-97-dataset	
u'3'
datapoint_set-56-dataset	
u'3'
datapoint_set-25-id	
u'7494'
datapoint_set-15-id	
u'7484'
datapoint_set-62-id	
u'7531'
datapoint_set-74-dataset	
u'3'
datapoint_set-95-id	
u'7564'
datapoint_set-42-dataset	
u'3'
datapoint_set-8-id	
u'7477'
datapoint_set-24-dataset	
u'3'
datapoint_set-9-dataset	
u'3'
datapoint_set-94-dataset	
u'3'
datapoint_set-48-dataset	
u'3'
datapoint_set-79-id	
u'7548'
datapoint_set-38-id	
u'7507'
datapoint_set-71-dataset	
u'3'
datapoint_set-53-id	
u'7522'
datapoint_set-29-dataset	
u'3'
datapoint_set-89-dataset	
u'3'
datapoint_set-62-dataset	
u'3'
datapoint_set-4-id	
u'7473'
datapoint_set-15-dataset	
u'3'
datapoint_set-51-id	
u'7520'
datapoint_set-14-id	
u'7483'
datapoint_set-27-dataset	
u'3'
datapoint_set-0-dataset	
u'3'
datapoint_set-49-id	
u'7518'
datapoint_set-45-id	
u'7514'
datapoint_set-67-id	
u'7536'
datapoint_set-91-dataset	
u'3'
datapoint_set-70-dataset	
u'3'
datapoint_set-100-id	
u''
datapoint_set-21-id	
u'7490'
datapoint_set-91-id	
u'7560'
datapoint_set-21-dataset	
u'3'
datapoint_set-61-id	
u'7530'
_save	
u'Save'
datapoint_set-65-id	
u'7534'
datapoint_set-50-dataset	
u'3'
datapoint_set-12-id	
u'7481'
datapoint_set-40-dataset	
u'3'
datapoint_set-88-dataset	
u'3'
datapoint_set-77-dataset	
u'3'
datapoint_set-83-dataset	
u'3'
datapoint_set-30-id	
u'7499'
datapoint_set-55-id	
u'7524'
datapoint_set-76-id	
u'7545'
datapoint_set-42-id	
u'7511'
datapoint_set-39-id	
u'7508'
datapoint_set-74-id	
u'7543'
datapoint_set-17-id	
u'7486'
datapoint_set-52-dataset	
u'3'
datapoint_set-32-dataset	
u'3'
datapoint_set-87-dataset	
u'3'
datapoint_set-39-dataset	
u'3'
datapoint_set-95-dataset	
u'3'
datapoint_set-73-id	
u'7542'
datapoint_set-5-dataset	
u'3'
datapoint_set-12-dataset	
u'3'
datapoint_set-1-id	
u'7470'
datapoint_set-2-id	
u'7471'
datapoint_set-18-id	
u'7487'
datapoint_set-85-dataset	
u'3'
datapoint_set-81-id	
u'7550'
datapoint_set-100-dataset	
u'3'
datapoint_set-43-dataset	
u'3'
datapoint_set-1-dataset	
u'3'
datapoint_set-99-dataset	
u'3'
datapoint_set-11-id	
u'7480'
datapoint_set-51-dataset	
u'3'
datapoint_set-17-dataset	
u'3'
datapoint_set-71-id	
u'7540'
datapoint_set-8-dataset	
u'3'
datapoint_set-72-id	
u'7541'
datapoint_set-46-id	
u'7515'
datapoint_set-83-id	
u'7552'
datapoint_set-41-dataset	
u'3'
datapoint_set-28-id	
u'7497'
datapoint_set-25-dataset	
u'3'
datapoint_set-41-id	
u'7510'
datapoint_set-9-id	
u'7478'
datapoint_set-32-id	
u'7501'
datapoint_set-54-dataset	
u'3'
csrfmiddlewaretoken	
u'5UVCGNrhyAgeKLGaC86ZOk4vMslOI7QI'
datapoint_set-98-id	
u'7567'
datapoint_set-86-id	
u'7555'
datapoint_set-75-dataset	
u'3'
datapoint_set-47-id	
u'7516'
datapoint_set-43-id	
u'7512'
datapoint_set-33-id	
u'7502'
datapoint_set-40-id	
u'7509'
datapoint_set-20-id	
u'7489'
datapoint_set-4-dataset	
u'3'
datapoint_set-19-dataset	
u'3'
datapoint_set-92-dataset	
u'3'
datapoint_set-58-dataset	
u'3'
datapoint_set-3-id	
u'7472'
datapoint_set-34-dataset	
u'3'
datapoint_set-80-id	
u'7549'
datapoint_set-34-id	
u'7503'
datapoint_set-53-dataset	
u'3'
datapoint_set-47-dataset	
u'3'
datapoint_set-16-id	
u'7485'
datapoint_set-38-dataset	
u'3'
datapoint_set-78-id	
u'7547'
datapoint_set-66-id	
u'7535'
datapoint_set-59-id	
u'7528'
datapoint_set-36-id	
u'7505'
datapoint_set-36-dataset	
u'3'
datapoint_set-35-id	
u'7504'
datapoint_set-5-id	
u'7474'
FILES
Variable	Value
datapoints_file	
<InMemoryUploadedFile: LS2A_DATA_2.csv (application/vnd.ms-excel)>
COOKIES
Variable	Value
csrftoken	
'5UVCGNrhyAgeKLGaC86ZOk4vMslOI7QI'
djdttop	
'103'
djdt	
'hide'
sessionid	
'espym30xuoiad4glgw32gft6sbrpxw5h'
META
Variable	Value
wsgi.version	
(1, 0)
RUN_MAIN	
'true'
HTTP_REFERER	
'http://localhost:8000/admin/paxriver/dataset/3/'
SERVER_PROTOCOL	
'HTTP/1.1'
SERVER_SOFTWARE	
'WSGIServer/0.1 Python/2.7.3'
SCRIPT_NAME	
u''
LESSOPEN	
'| /usr/bin/lesspipe %s'
SSH_CLIENT	
'10.0.2.2 52415 22'
REQUEST_METHOD	
'POST'
LOGNAME	
'vagrant'
USER	
'vagrant'
HTTP_ORIGIN	
'http://localhost:8000'
PATH	
'/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/opt/vagrant_ruby/bin'
QUERY_STRING	
''
HOME	
'/home/vagrant'
DISPLAY	
'localhost:10.0'
CONTENT_LENGTH	
'27871'
TERM	
'xterm'
SHELL	
'/bin/bash'
TZ	
'UTC'
XDG_SESSION_COOKIE	
'71775adbda196b18e5105bec0000030c-1421153841.730230-2110935352'
SERVER_NAME	
'precise64'
REMOTE_ADDR	
'10.0.2.2'
SHLVL	
'1'
wsgi.url_scheme	
'http'
SERVER_PORT	
'8000'
HTTP_CONNECTION	
'keep-alive'
wsgi.file_wrapper	
''
CSRF_COOKIE	
u'5UVCGNrhyAgeKLGaC86ZOk4vMslOI7QI'
wsgi.input	
<socket._fileobject object at 0x2cd6050>
HTTP_USER_AGENT	
'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36'
HTTP_HOST	
'localhost:8000'
wsgi.multithread	
True
LC_ALL	
'en_US'
HTTP_CACHE_CONTROL	
'max-age=0'
_	
'/usr/bin/python'
HTTP_ACCEPT	
'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
SSH_CONNECTION	
'10.0.2.2 52415 10.0.2.15 22'
LESSCLOSE	
'/usr/bin/lesspipe %s %s'
GATEWAY_INTERFACE	
'CGI/1.1'
wsgi.run_once	
False
SSH_TTY	
'/dev/pts/1'
OLDPWD	
'/home/vagrant'
wsgi.multiprocess	
False
HTTP_ACCEPT_LANGUAGE	
'en-US,en;q=0.8'
wsgi.errors	
<open file '<stderr>', mode 'w' at 0x7f414ae85270>
PWD	
'/vagrant/mysite'
DJANGO_SETTINGS_MODULE	
'mysite.settings'
CONTENT_TYPE	
'multipart/form-data; boundary=----WebKitFormBoundaryj1gfbbkxtPx0Y3Yj'
MAIL	
'/var/mail/vagrant'
LS_COLORS	
'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:'
REMOTE_HOST	
''
HTTP_ACCEPT_ENCODING	
'gzip, deflate'
HTTP_COOKIE	
'djdt=hide; sessionid=espym30xuoiad4glgw32gft6sbrpxw5h; csrftoken=5UVCGNrhyAgeKLGaC86ZOk4vMslOI7QI; djdttop=103'
PATH_INFO	
u'/admin/paxriver/dataset/3/'
Settings
Using settings module mysite.settings
Setting	Value
USE_L10N	
True
USE_THOUSAND_SEPARATOR	
False
CSRF_COOKIE_SECURE	
False
LANGUAGE_CODE	
'en-us'
ROOT_URLCONF	
'mysite.urls'
MANAGERS	
()
BASE_DIR	
'/vagrant/mysite'
TEST_NON_SERIALIZED_APPS	
[]
DEFAULT_CHARSET	
'utf-8'
SESSION_SERIALIZER	
'django.contrib.sessions.serializers.JSONSerializer'
STATIC_ROOT	
None
ALLOWED_HOSTS	
[]
MESSAGE_STORAGE	
'django.contrib.messages.storage.fallback.FallbackStorage'
EMAIL_SUBJECT_PREFIX	
'[Django] '
SEND_BROKEN_LINK_EMAILS	
False
STATICFILES_FINDERS	
('django.contrib.staticfiles.finders.FileSystemFinder',
 'django.contrib.staticfiles.finders.AppDirectoriesFinder')
SESSION_CACHE_ALIAS	
'default'
SESSION_COOKIE_DOMAIN	
None
SESSION_COOKIE_NAME	
'sessionid'
ADMIN_FOR	
()
TIME_INPUT_FORMATS	
('%H:%M:%S', '%H:%M:%S.%f', '%H:%M')
DATABASES	
{'default': {'ATOMIC_REQUESTS': False,
             'AUTOCOMMIT': True,
             'CONN_MAX_AGE': 0,
             'ENGINE': 'django.db.backends.sqlite3',
             'HOST': '',
             'NAME': '/vagrant/mysite/db.sqlite3',
             'OPTIONS': {},
             'PASSWORD': u'********************',
             'PORT': '',
             'TEST': {'CHARSET': None,
                      'COLLATION': None,
                      'MIRROR': None,
                      'NAME': None},
             'TIME_ZONE': 'UTC',
             'USER': ''}}
FILE_UPLOAD_DIRECTORY_PERMISSIONS	
None
FILE_UPLOAD_PERMISSIONS	
None
FILE_UPLOAD_HANDLERS	
('django.core.files.uploadhandler.MemoryFileUploadHandler',
 'django.core.files.uploadhandler.TemporaryFileUploadHandler')
DEFAULT_CONTENT_TYPE	
'text/html'
APPEND_SLASH	
True
LOCALE_PATHS	
()
DATABASE_ROUTERS	
[]
DEFAULT_TABLESPACE	
''
YEAR_MONTH_FORMAT	
'F Y'
STATICFILES_STORAGE	
'django.contrib.staticfiles.storage.StaticFilesStorage'
CACHES	
{'default': {'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'}}
SERVER_EMAIL	
'root@localhost'
SESSION_COOKIE_PATH	
'/'
SILENCED_SYSTEM_CHECKS	
[]
MIDDLEWARE_CLASSES	
(u'debug_toolbar.middleware.DebugToolbarMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware')
USE_I18N	
True
THOUSAND_SEPARATOR	
','
SECRET_KEY	
u'********************'
LANGUAGE_COOKIE_NAME	
'django_language'
DEFAULT_INDEX_TABLESPACE	
''
TRANSACTIONS_MANAGED	
False
LOGGING_CONFIG	
'logging.config.dictConfig'
TEMPLATE_LOADERS	
('django.template.loaders.filesystem.Loader',
 'django.template.loaders.app_directories.Loader')
FIRST_DAY_OF_WEEK	
0
WSGI_APPLICATION	
'mysite.wsgi.application'
TEMPLATE_DEBUG	
True
X_FRAME_OPTIONS	
'SAMEORIGIN'
CSRF_COOKIE_NAME	
'csrftoken'
FORCE_SCRIPT_NAME	
None
USE_X_FORWARDED_HOST	
False
SIGNING_BACKEND	
'django.core.signing.TimestampSigner'
SESSION_COOKIE_SECURE	
False
CSRF_COOKIE_DOMAIN	
None
FILE_CHARSET	
'utf-8'
DEBUG	
True
LANGUAGE_COOKIE_DOMAIN	
None
DEFAULT_FILE_STORAGE	
'django.core.files.storage.FileSystemStorage'
INSTALLED_APPS	
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'fileupload',
 'polls',
 'paxriver',
 'debug_toolbar')
LANGUAGES	
(('af', 'Afrikaans'),
 ('ar', 'Arabic'),
 ('ast', 'Asturian'),
 ('az', 'Azerbaijani'),
 ('bg', 'Bulgarian'),
 ('be', 'Belarusian'),
 ('bn', 'Bengali'),
 ('br', 'Breton'),
 ('bs', 'Bosnian'),
 ('ca', 'Catalan'),
 ('cs', 'Czech'),
 ('cy', 'Welsh'),
 ('da', 'Danish'),
 ('de', 'German'),
 ('el', 'Greek'),
 ('en', 'English'),
 ('en-au', 'Australian English'),
 ('en-gb', 'British English'),
 ('eo', 'Esperanto'),
 ('es', 'Spanish'),
 ('es-ar', 'Argentinian Spanish'),
 ('es-mx', 'Mexican Spanish'),
 ('es-ni', 'Nicaraguan Spanish'),
 ('es-ve', 'Venezuelan Spanish'),
 ('et', 'Estonian'),
 ('eu', 'Basque'),
 ('fa', 'Persian'),
 ('fi', 'Finnish'),
 ('fr', 'French'),
 ('fy', 'Frisian'),
 ('ga', 'Irish'),
 ('gl', 'Galician'),
 ('he', 'Hebrew'),
 ('hi', 'Hindi'),
 ('hr', 'Croatian'),
 ('hu', 'Hungarian'),
 ('ia', 'Interlingua'),
 ('id', 'Indonesian'),
 ('io', 'Ido'),
 ('is', 'Icelandic'),
 ('it', 'Italian'),
 ('ja', 'Japanese'),
 ('ka', 'Georgian'),
 ('kk', 'Kazakh'),
 ('km', 'Khmer'),
 ('kn', 'Kannada'),
 ('ko', 'Korean'),
 ('lb', 'Luxembourgish'),
 ('lt', 'Lithuanian'),
 ('lv', 'Latvian'),
 ('mk', 'Macedonian'),
 ('ml', 'Malayalam'),
 ('mn', 'Mongolian'),
 ('mr', 'Marathi'),
 ('my', 'Burmese'),
 ('nb', 'Norwegian Bokmal'),
 ('ne', 'Nepali'),
 ('nl', 'Dutch'),
 ('nn', 'Norwegian Nynorsk'),
 ('os', 'Ossetic'),
 ('pa', 'Punjabi'),
 ('pl', 'Polish'),
 ('pt', 'Portuguese'),
 ('pt-br', 'Brazilian Portuguese'),
 ('ro', 'Romanian'),
 ('ru', 'Russian'),
 ('sk', 'Slovak'),
 ('sl', 'Slovenian'),
 ('sq', 'Albanian'),
 ('sr', 'Serbian'),
 ('sr-latn', 'Serbian Latin'),
 ('sv', 'Swedish'),
 ('sw', 'Swahili'),
 ('ta', 'Tamil'),
 ('te', 'Telugu'),
 ('th', 'Thai'),
 ('tr', 'Turkish'),
 ('tt', 'Tatar'),
 ('udm', 'Udmurt'),
 ('uk', 'Ukrainian'),
 ('ur', 'Urdu'),
 ('vi', 'Vietnamese'),
 ('zh-cn', 'Simplified Chinese'),
 ('zh-hans', 'Simplified Chinese'),
 ('zh-hant', 'Traditional Chinese'),
 ('zh-tw', 'Traditional Chinese'))
COMMENTS_ALLOW_PROFANITIES	
False
STATICFILES_DIRS	
()
PREPEND_WWW	
False
SECURE_PROXY_SSL_HEADER	
None
LANGUAGE_COOKIE_AGE	
None
SESSION_COOKIE_HTTPONLY	
True
DEBUG_PROPAGATE_EXCEPTIONS	
False
INTERNAL_IPS	
'10.0.2.2'
MONTH_DAY_FORMAT	
'F j'
LOGIN_URL	
'/accounts/login/'
SESSION_EXPIRE_AT_BROWSER_CLOSE	
False
TIME_FORMAT	
'P'
AUTH_USER_MODEL	
'auth.User'
DATE_INPUT_FORMATS	
('%Y-%m-%d',
 '%m/%d/%Y',
 '%m/%d/%y',
 '%b %d %Y',
 '%b %d, %Y',
 '%d %b %Y',
 '%d %b, %Y',
 '%B %d %Y',
 '%B %d, %Y',
 '%d %B %Y',
 '%d %B, %Y')
AUTHENTICATION_BACKENDS	
('django.contrib.auth.backends.ModelBackend',)
EMAIL_HOST_PASSWORD	
u'********************'
PASSWORD_RESET_TIMEOUT_DAYS	
u'********************'
SESSION_FILE_PATH	
None
CACHE_MIDDLEWARE_ALIAS	
'default'
SESSION_SAVE_EVERY_REQUEST	
False
NUMBER_GROUPING	
0
SESSION_ENGINE	
'django.contrib.sessions.backends.db'
CSRF_FAILURE_VIEW	
'django.views.csrf.csrf_failure'
CSRF_COOKIE_PATH	
'/'
LOGIN_REDIRECT_URL	
'/accounts/profile/'
DECIMAL_SEPARATOR	
'.'
IGNORABLE_404_URLS	
()
MIGRATION_MODULES	
{}
TEMPLATE_STRING_IF_INVALID	
''
LOGOUT_URL	
'/accounts/logout/'
EMAIL_USE_TLS	
False
FIXTURE_DIRS	
()
EMAIL_HOST	
'localhost'
DATE_FORMAT	
'N j, Y'
MEDIA_ROOT	
''
DEFAULT_EXCEPTION_REPORTER_FILTER	
'django.views.debug.SafeExceptionReporterFilter'
ADMINS	
()
FORMAT_MODULE_PATH	
None
DEFAULT_FROM_EMAIL	
'webmaster@localhost'
MEDIA_URL	
''
DATETIME_FORMAT	
'N j, Y, P'
TEMPLATE_DIRS	
['/vagrant/mysite/templates']
DISALLOWED_USER_AGENTS	
()
ALLOWED_INCLUDE_ROOTS	
()
LOGGING	
{}
SHORT_DATE_FORMAT	
'm/d/Y'
TEST_RUNNER	
'django.test.runner.DiscoverRunner'
CACHE_MIDDLEWARE_KEY_PREFIX	
u'********************'
TIME_ZONE	
'UTC'
FILE_UPLOAD_MAX_MEMORY_SIZE	
2621440
EMAIL_BACKEND	
'django.core.mail.backends.smtp.EmailBackend'
EMAIL_USE_SSL	
False
TEMPLATE_CONTEXT_PROCESSORS	
('django.contrib.auth.context_processors.auth',
 'django.core.context_processors.debug',
 'django.core.context_processors.i18n',
 'django.core.context_processors.media',
 'django.core.context_processors.static',
 'django.core.context_processors.tz',
 'django.contrib.messages.context_processors.messages')
SESSION_COOKIE_AGE	
1209600
SETTINGS_MODULE	
'mysite.settings'
USE_ETAGS	
False
LANGUAGES_BIDI	
('he', 'ar', 'fa', 'ur')
FILE_UPLOAD_TEMP_DIR	
None
CSRF_COOKIE_AGE	
31449600
STATIC_URL	
'/static/'
EMAIL_PORT	
25
USE_TZ	
True
SHORT_DATETIME_FORMAT	
'm/d/Y P'
PASSWORD_HASHERS	
u'********************'
ABSOLUTE_URL_OVERRIDES	
{}
LANGUAGE_COOKIE_PATH	
'/'
CACHE_MIDDLEWARE_SECONDS	
600
CSRF_COOKIE_HTTPONLY	
False
DATETIME_INPUT_FORMATS	
('%Y-%m-%d %H:%M:%S',
 '%Y-%m-%d %H:%M:%S.%f',
 '%Y-%m-%d %H:%M',
 '%Y-%m-%d',
 '%m/%d/%Y %H:%M:%S',
 '%m/%d/%Y %H:%M:%S.%f',
 '%m/%d/%Y %H:%M',
 '%m/%d/%Y',
 '%m/%d/%y %H:%M:%S',
 '%m/%d/%y %H:%M:%S.%f',
 '%m/%d/%y %H:%M',
 '%m/%d/%y')
EMAIL_HOST_USER	
''
PROFANITIES_LIST	
u'********************'
You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 500 page.
«

forms.py

from django import forms
from django.core.exceptions import ValidationError
from django.db import transaction, IntegrityError

from datetime import datetime

from paxriver.models import Dataset, Datapoint

class UploadFileForm(forms.ModelForm):
    datapoints_file = forms.FileField(required=False)

models.py

from django.db import models

class Dataset(models.Model):
    name = models.CharField(max_length=200)

    def __unicode__(self):
        return self.name

class Datapoint(models.Model):
    dataset = models.ForeignKey(Dataset)
    timestamp = models.DateTimeField()
    air_temperature = models.DecimalField(max_digits=20, decimal_places=10)
    relative_humidity = models.DecimalField(max_digits=20, decimal_places=10)

    class Meta:
        ordering = ('timestamp',)
        unique_together = ('dataset','timestamp',)