Files
lancedb/python
Chenghao Lyu 46fcbbc1e3 fix(python): require explicit region for S3 buckets with dots (#2892)
When region is not specific in the s3 path, `resolve_s3_region` from
"lance-format" project (see [here][1]) will resolve the region by
calling `resolve_bucket_region`, which is a function from the
"arrow-rs-object-store" project expecting [virtual-hosted-style
URLs][1]. When there are dot (".") in the virtual-hosted-style URLs, it
breaks automatic region detection. See more details in the issue
description:
https://github.com/lancedb/lancedb/issues/1898#issuecomment-3690142427

This PR add early validation in connect() and connect_async() to raise a
clear error with instructions when the region is not specified for such
buckets.


[1]:
https://github.com/lance-format/lance/blob/v2.0.0-beta.4/rust/lance-io/src/object_store/providers/aws.rs#L197
[2]:
eedbf3d7d8/src/aws/resolve.rs (L52C5-L52C65)
[3]:
https://docs.aws.amazon.com/AmazonS3/latest/userguide/VirtualHosting.html#virtual-hosted-style-access

Fixes #1898
2026-01-02 15:35:22 -08:00
..
2025-01-29 08:27:07 -08:00
2025-03-10 09:01:23 -07:00
2024-04-05 16:22:59 -07:00
2025-01-07 15:11:16 -08:00

LanceDB

A Python library for LanceDB.

Installation

pip install lancedb

Preview Releases

Stable releases are created about every 2 weeks. For the latest features and bug fixes, you can install the preview release. These releases receive the same level of testing as stable releases, but are not guaranteed to be available for more than 6 months after they are released. Once your application is stable, we recommend switching to stable releases.

pip install --pre --extra-index-url https://pypi.fury.io/lancedb/ lancedb

Usage

Basic Example

import lancedb
db = lancedb.connect('<PATH_TO_LANCEDB_DATASET>')
table = db.open_table('my_table')
results = table.search([0.1, 0.3]).limit(20).to_list()
print(results)

Development

See CONTRIBUTING.md for information on how to contribute to LanceDB.