FieldFile對象沒有屬性'startswith'

Question

我測試了幾個選項。我已經用S3上傳了一個使用django-storage的文件，並且工作正常。然而，當我試着和下面的代碼，我得到以下錯誤讀取文件：

'FieldFile' object has no attribute 'startswith'

爲什麼？

即使是default_storage.exists（self.filepath）也會給出相同的錯誤。

csv_file = default_storage.open(self.filepath, 'r') 


new_object = CSVImport(csvfile=csv_file.read(), 
         model=Contact, 
         modelspy=".", 
         mappings="1=first_name,2=mobile,3=email,4=last_name,5=43,6=16") 

new_object.run() 

完全錯誤：

Environment: 


Request Method: POST 
Request URL: http://127.0.0.1:8000/contacts/upload/configurator/95/ 

Django Version: 1.5.1 
Python Version: 2.7.2 
Installed Applications: 
('django.contrib.auth', 
'django.contrib.contenttypes', 
'django.contrib.sessions', 
'django.contrib.sites', 
'django.contrib.messages', 
'django.contrib.staticfiles', 
'django.contrib.admin', 
'django.contrib.humanize', 
'django.contrib.sitemaps', 
'south', 
'userena', 
'social_auth', 
'djcelery', 
'storages', 
'endless_pagination', 
'django.contrib.flatpages', 
'django_sagepay', 
'guardian', 
'widget_tweaks', 
'badger', 
'tastypie', 
'accounts', 
'contacts', 
'sms', 
'smartpages', 
'django_sagepay', 
'unsubscribe', 
'core', 
'django_nose', 
'debug_toolbar') 
Installed Middleware: 
('dogslow.WatchdogMiddleware', 
'django.middleware.common.CommonMiddleware', 
'django.contrib.sessions.middleware.SessionMiddleware', 
'django.middleware.csrf.CsrfViewMiddleware', 
'django.contrib.auth.middleware.AuthenticationMiddleware', 
'django.contrib.messages.middleware.MessageMiddleware', 
'async_messages.middleware.AsyncMiddleware', 
'core.middleware.ssl.SSLRedirect', 
'core.middleware.account.RefreshBalance', 
'debug_toolbar.middleware.DebugToolbarMiddleware') 


Traceback: 
File "/Users/user/Documents/workspace/t/django-env/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response 
    115.       response = callback(request, *callback_args, **callback_kwargs) 
File "/Users/user/Documents/workspace/t/django-env/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view 
    25.     return view_func(request, *args, **kwargs) 
File "/Users/user/Documents/workspace/t/contacts/views.py" in upload_configurator 
    201.    process_upload_Temp(upload_id=upload.id, cleaned_data=data) 
File "/Users/user/Documents/workspace/t/contacts/views.py" in process_upload_Temp 
    222.  upload.process(cleaned_data=cleaned_data) 
File "/Users/user/Documents/workspace/t/contacts/models.py" in process 
    169.   csv_file = default_storage.open(self.filepath, 'r') 
File "/Users/user/Documents/workspace/t/django-env/lib/python2.7/site-packages/django/core/files/storage.py" in open 
    36.   return self._open(name, mode) 
File "/Users/user/Documents/workspace/t/django-env/lib/python2.7/site-packages/storages/backends/s3boto.py" in _open 
    237.   name = self._normalize_name(self._clean_name(name)) 
File "/Users/user/Documents/workspace/t/django-env/lib/python2.7/site-packages/storages/backends/s3boto.py" in _clean_name 
    204.   return os.path.normpath(name).replace('\\', '/') 
File "/Users/user/Documents/workspace/t/django-env/lib/python2.7/posixpath.py" in normpath 
    318.  initial_slashes = path.startswith('/') 

Exception Type: AttributeError at /contacts/upload/configurator/95/ 
Exception Value: 'FieldFile' object has no attribute 'startswith' 


I have tried: 

csv_file.read() gives same error. 

Full Error details: 

Answer 1

錯誤是由拋出：

csv_file = default_storage.open(self.filepath, 'r') 

它告訴的self.filepath類型是FieldFile。所以給它的名字，我希望這個對象是一個已經打開的文件。所以，你應該嘗試：

new_object = CSVImport(csvfile=self.filepath.read(), ...) 

不過，我可能是錯的，self.filepath可能包含路徑，你要打開的文件的文件......這是很難說給你的代碼示例中，我只能猜測。

Answer 2

您正在將FieldFile對象傳遞給default_storage.open()，但它期望文件名作爲字符串。給它一個用於保存文件的名稱，而不是FieldFile對象。