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django backblaze b2 storage using b2sdk

Project description

django backblaze b2 storage using b2sdk (b2sdk is official backblaze python library)


The full documentation is at


Install django-b2:

pip install django-b2

Add into your settings:

MEDIA_URL = '/media/'
DEFAULT_FILE_STORAGE = ''                 # if used without django-tenant-schemas
# DEFAULT_FILE_STORAGE = 'django_b2.tenant_storage.TenantB2Storage'  # if used with django-tenant-schemas
B2_APP_KEY_ID = 000xxxxxxxxxxxx000000000n
B2_APP_KEY = keyvalue
B2_BUCKET_NAME = bucketname
# optional, see Usage (docs/usage.rst):
# optional, see Usage (docs/usage.rst):
B2_LOCAL_MEDIA = ..  # "", "M", "L", "ML"

Using outside of Django:

from django_b2.backblaze_b2 import BackBlazeB2
b2 = BackBlazeB2()
b2.authorize("production", application_key_id, application_key)
with open(filename, 'rb') as f:
    b2.upload_file(filename, f)
content = b2.download_file(filename)
with open(filename2, 'wb') as f:


  • Django media storage (with or general python access to BackBlaze B2 (without usage of

  • Upload single file to B2 (call as script; new in 0.2.0)

  • Backup a postgres database to B2 (use script; new in 0.2.0)

  • Optionally cache media files locally for immediate access or for long time faster access.

Running Tests

Does the code actually work?

source <YOURVIRTUALENV>/bin/activate
(myenv) $ pip install -r requirements_test.txt
(myenv) $ tox


Tools used in rendering this package:


0.7.0 (2020-12-29)

  • new Django setting B2_FORCE_UNIQUE and new underlaying constructor parameter BackBlazeB2(force_unique=True)

0.6.2 (2020-11-04)

  • B2Storage() initializes as the settings.DEFAULT_FILE_STORAGE if ‘B2Storage’ string is not inside can be used together with @override_settings(DEFAULT_FILE_STORAGE=’’) see

0.6.0 (2020-05-28)

0.5.5 (2020-05-24)

  • bugfix: upload on Windows, thx Same Weaver,

  • Linux abs filenames: leading “/” will be removed so we can use local abs names 1:1 to upload to b2 (in Windows: C:/.. is valid name)

0.5.0 (2020-02-17)

  • can work with django-tenant schemas, tenant aware storage django_b2.tenant_storage.TenantB2Storage

0.4.0 (2020-02-10)

  • older local media (see B2_LOCAL_MEDIA) can be cleared with management command b2_clear_local_media

  • B2_LOCAL_CACHE setting renamed to B2_LOCAL_MEDIA, possible values changed to =”ML”

0.3.0 (2020-02-08) - do not use

  • !! new B2_LOCAL_MEDIA setting was in 0.3.0 named incompatible as B2_LOCAL_CACHE=”FM”

  • B2_LOCAL_MEDIA setting to make a local copy of files. So you can have local instances backuped on backblaze.

  • B2_LOCAL_MEDIA prevents failures if the django application want immediately reopen the file (imagekits creating thumbnails, Wagtail is an example)

0.2.0 (2020-01-31)

  • can be called as script to upload single file.

  • script to backup postgres database

0.1.5 (2020-01-02)

  • No code change. Minor docs changes.

0.1.4 (2020-01-02)

  • First release on PyPI.

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