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e1ae2bcbd8
Add `to_list` to return query results as list of python dict (so we're not too pandas-centric). Closes #555 Add `to_pandas` API and add deprecation warning on `to_df`. Closes #545 Co-authored-by: Chang She <chang@lancedb.com>
72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
# Copyright 2023 LanceDB Developers
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import importlib.metadata
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from typing import Optional
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__version__ = importlib.metadata.version("lancedb")
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from .db import URI, DBConnection, LanceDBConnection
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from .remote.db import RemoteDBConnection
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from .schema import vector
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from .utils import sentry_log
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def connect(
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uri: URI,
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*,
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api_key: Optional[str] = None,
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region: str = "us-west-2",
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host_override: Optional[str] = None,
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) -> DBConnection:
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"""Connect to a LanceDB database.
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Parameters
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----------
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uri: str or Path
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The uri of the database.
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api_key: str, optional
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If presented, connect to LanceDB cloud.
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Otherwise, connect to a database on file system or cloud storage.
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region: str, default "us-west-2"
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The region to use for LanceDB Cloud.
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host_override: str, optional
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The override url for LanceDB Cloud.
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Examples
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--------
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For a local directory, provide a path for the database:
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>>> import lancedb
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>>> db = lancedb.connect("~/.lancedb")
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For object storage, use a URI prefix:
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>>> db = lancedb.connect("s3://my-bucket/lancedb")
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Connect to LancdDB cloud:
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>>> db = lancedb.connect("db://my_database", api_key="ldb_...")
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Returns
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-------
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conn : DBConnection
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A connection to a LanceDB database.
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"""
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if isinstance(uri, str) and uri.startswith("db://"):
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if api_key is None:
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raise ValueError(f"api_key is required to connected LanceDB cloud: {uri}")
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return RemoteDBConnection(uri, api_key, region, host_override)
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return LanceDBConnection(uri)
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