objpath

pathlib for S3, Google Cloud Storage and Azure Blob buckets. S3Path("reports/2026.csv", bucket="data") has the method names, signatures and exception types of pathlib.Path; GSPath and AZPath do the same for the other two stores. None needs a URI, and all build on pathapi alone, which holds the Path base class, glob, walk and PathSyncer. With uripath installed the same package also provides the s3:, gs: and az: schemes: URIPath("s3://data/reports/2026.csv").

Deliberate behavioral differences from pathlib are listed, with their reasons, in Divergences from pathlib.

Installation

pip install "objpath[s3]"             # or "objpath[gs]", "objpath[az]", or several
pip install "objpath[uri]"            # adds uripath and with it the s3:, gs: and az: schemes

No SDK is required to import the package: the first request of a store whose extra is missing raises an ImportError that names the extra.

Install	Adds
pip install objpath	the paths and the backend contracts (no SDK)
pip install "objpath[s3]"	boto3, for S3Path
pip install "objpath[gs]"	google-cloud-storage, for GSPath
pip install "objpath[az]"	azure-storage-blob and azure-identity, for AZPath
pip install "objpath[uri]"	uripath and the schemes
pip install "objpath[all]"	all of the above

Tour

A path in a bucket: the bucket is a keyword and the segments are the key; nothing connects until the first request:

from objpath import S3Path

report = S3Path("reports/2026.csv", bucket="data")
print(report.read_text())
for child in report.parent.iterdir():
    print(child.name, child.stat().st_size)

One client for many paths: a backend is the SDK client, and paths that share it share its connection pool:

from objpath import S3Backend, S3Path

with S3Backend(endpoint_url="https://minio.example.org", region_name="us-east-1") as backend:
    root = S3Path(bucket="backups", backend=backend)
    (root / "2026").mkdir(exist_ok=True)
    (root / "2026" / "n.txt").write_text("1")

The schemes: with uripath installed, the URL of the object works too, and the same classes do the work:

from uripath import URIPath

print(URIPath("s3://data/reports/2026.csv").read_text())

See Object-store paths and The schemes.