b2-native-python

name	b2-native-python
description	Backblaze B2 cloud storage via b2sdk Python SDK. Auth, upload, download, buckets, keys, large files, sync.

Backblaze B2 Native Python SDK (b2sdk)

Official Python SDK for Backblaze B2 Cloud Storage using the B2 Native API.

Quick start

from b2sdk.v3 import InMemoryAccountInfo, B2Api

info = InMemoryAccountInfo()
b2_api = B2Api(info)
b2_api.authorize_account("production", APPLICATION_KEY_ID, APPLICATION_KEY)

bucket = b2_api.get_bucket_by_name("my-bucket")
bucket.upload_local_file(
    local_file="/path/to/file.pdf",
    file_name="remote/file.pdf",
)

Install

pip install b2sdk
# or
uv add b2sdk

Always import from b2sdk.v3 (latest stable interface).

References

• Setup & auth — AccountInfo types, authorization, credentials
• File operations — Upload, download, list, copy, delete, metadata
• Bucket operations — Create, list, update, delete buckets
• Large files & sync — Multipart uploads, Synchronizer, parallel transfers
• Keys & security — Application keys, SSE-B2, SSE-C encryption
• Error handling — Status codes, retry logic, integration best practices