Files
lancedb/python/README.md
Chang She e1ae2bcbd8 feat: add to_list and to_pandas api's (#556)
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>
2023-10-11 12:18:55 -07:00

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# LanceDB
A Python library for [LanceDB](https://github.com/lancedb/lancedb).
## Installation
```bash
pip install lancedb
```
## Usage
### Basic Example
```python
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
Create a virtual environment and activate it:
```bash
python -m venv venv
. ./venv/bin/activate
```
Install the necessary packages:
```bash
python -m pip install .
```
To run the unit tests:
```bash
pytest
```
To run linter and automatically fix all errors:
```bash
black .
isort .
```
If any packages are missing, install them with:
```bash
pip install <PACKAGE_NAME>
```
___
For **Windows** users, there may be errors when installing packages, so these commands may be helpful:
Activate the virtual environment:
```bash
. .\venv\Scripts\activate
```
You may need to run the installs separately:
```bash
pip install -e .[tests]
pip install -e .[dev]
```
`tantivy` requires `rust` to be installed, so install it with `conda`, as it doesn't support windows installation:
```bash
pip install wheel
pip install cargo
conda install rust
pip install tantivy
```
To run the unit tests:
```bash
pytest
```