Custom S3BotoStorage class constructor error

Question

I am trying to create a new custom storage class based off S3BotoStorage and I keep getting this error with the following code:

import sys
from django.core.files.storage import Storage
from storages.backends.s3boto import S3BotoStorage


class customStorage(S3BotoStorage):
    def __init__(self, *args, **kwargs):
        kwargs['bucket_name'] = 'bucket_1'
        print >> sys.stderr, 'Creating MyS3Storage'        
        super(S3BotoStorage, self).__init__(*args, **kwargs)

Error:

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/functional.py", line 184, in inner
self._setup()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/files/storage.py", line 285, in _setup
self._wrapped = get_storage_class()()
File "/Users/abisson/Sites/poka/common/storages/models.py", line 10, in __init__
super(S3BotoStorage, self).__init__(*args, **kwargs)
TypeError: object.__init__() takes no parameters

I based my answer off Pointing to multiple S3 buckets in s3boto and it should work no? Even normally, we can do:

obj1 = models.FileField(storage=S3BotoStorage(bucket='bucket_1'), upload_to=custom_upload_to)

and it works. (and do pass an argument to the constructor)

Paragon · Accepted Answer · 2012-05-06T15:47:04.860

You're calling the wrong init function! You mean to call the parent, but you're calling the parent's parent. You need to change your super() line from:

super(S3BotoStorage, self).__init__(*args, **kwargs)

to:

super(customStorage, self).__init__(*args, **kwargs)

In general, the super() command takes the current object and the class of whom's parent you want to call. This is important because there may be times that a person actually does want to call the parent's parent. This is allowed because the child object can still be considered as the parent object when need be.

Custom S3BotoStorage class constructor error

1 Answers1