Commit Graph

16 Commits

Author SHA1 Message Date
Will Jones
b2a38ac366 fix: make pylance optional again (#2209)
The two remaining blockers were:

* A method `with_embeddings` that was deprecated a year ago
* A typecheck for `LanceDataset`
2025-03-21 11:26:32 -07:00
msu-reevo
cc81f3e1a5 fix(python): typing (#2167)
@wjones127 is there a standard way you guys setup your virtualenv? I can
either relist all the dependencies in the pyright precommit section, or
specify a venv, or the user has to be in the virtual environment when
they run git commit. If the venv location was standardized or a python
manager like `uv` was used it would be easier to avoid duplicating the
pyright dependency list.

Per your suggestion, in `pyproject.toml` I added in all the passing
files to the `includes` section.

For ruff I upgraded the version and removed "TCH" which doesn't exist as
an option.

I added a `pyright_report.csv` which contains a list of all files sorted
by pyright errors ascending as a todo list to work on.

I fixed about 30 issues in `table.py` stemming from str's being passed
into methods that required a string within a set of string Literals by
extracting them into `types.py`

Can you verify in the rust bridge that the schema should be a property
and not a method here? If it's a method, then there's another place in
the code where `inner.schema` should be `inner.schema()`
``` python
class RecordBatchStream:
    @property
    def schema(self) -> pa.Schema: ...
```

Also unless the `_lancedb.pyi` file is wrong, then there is no
`__anext__` here for `__inner` when it's not an `AsyncGenerator` and
only `next` is defined:
``` python
    async def __anext__(self) -> pa.RecordBatch:
        return await self._inner.__anext__()
        if isinstance(self._inner, AsyncGenerator):
            batch = await self._inner.__anext__()
        else:
            batch = await self._inner.next()
        if batch is None:
            raise StopAsyncIteration
        return batch
```
in the else statement, `_inner` is a `RecordBatchStream`
```python
class RecordBatchStream:
    @property
    def schema(self) -> pa.Schema: ...
    async def next(self) -> Optional[pa.RecordBatch]: ...
```

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2025-03-10 09:01:23 -07:00
Will Jones
7ac5f74c80 feat!: add variable store to embeddings registry (#2112)
BREAKING CHANGE: embedding function implementations in Node need to now
call `resolveVariables()` in their constructors and should **not**
implement `toJSON()`.

This tries to address the handling of secrets. In Node, they are
currently lost. In Python, they are currently leaked into the table
schema metadata.

This PR introduces an in-memory variable store on the function registry.
It also allows embedding function definitions to label certain config
values as "sensitive", and the preprocessing logic will raise an error
if users try to pass in hard-coded values.

Closes #2110
Closes #521

---------

Co-authored-by: Weston Pace <weston.pace@gmail.com>
2025-02-24 15:52:19 -08:00
Will Jones
78a17ad54c chore: improve dev instructions for Python (#2088)
Closes #2042
2025-02-12 14:08:52 -08:00
Will Jones
801a9e5f6f feat(python): streaming larger-than-memory writes (#2094)
Makes our preprocessing pipeline do transforms in streaming fashion, so
users can do larger-then-memory writes.

Closes #2082
2025-02-06 16:37:30 -08:00
Will Jones
c557e77f09 feat(python)!: support inserting and upserting subschemas (#1965)
BREAKING CHANGE: For a field "vector", list of integers will now be
converted to binary (uint8) vectors instead of f32 vectors. Use float
values instead for f32 vectors.

* Adds proper support for inserting and upserting subsets of the full
schema. I thought I had previously implemented this in #1827, but it
turns out I had not tested carefully enough.
* Refactors `_santize_data` and other utility functions to be simpler
and not require `numpy` or `combine_chunks()`.
* Added a new suite of unit tests to validate sanitization utilities.

## Examples

```python
import pandas as pd
import lancedb

db = lancedb.connect("memory://demo")
intial_data = pd.DataFrame({
    "a": [1, 2, 3],
    "b": [4, 5, 6],
    "c": [7, 8, 9]
})
table = db.create_table("demo", intial_data)

# Insert a subschema
new_data = pd.DataFrame({"a": [10, 11]})
table.add(new_data)
table.to_pandas()
```
```
    a    b    c
0   1  4.0  7.0
1   2  5.0  8.0
2   3  6.0  9.0
3  10  NaN  NaN
4  11  NaN  NaN
```


```python
# Upsert a subschema
upsert_data = pd.DataFrame({
    "a": [3, 10, 15],
    "b": [6, 7, 8],
})
table.merge_insert(on="a").when_matched_update_all().when_not_matched_insert_all().execute(upsert_data)
table.to_pandas()
```
```
    a    b    c
0   1  4.0  7.0
1   2  5.0  8.0
2   3  6.0  9.0
3  10  7.0  NaN
4  11  NaN  NaN
5  15  8.0  NaN
```
2025-01-08 10:11:10 -08:00
Lei Xu
2ded17452b fix(python)!: handle bad openai embeddings gracefully (#1873)
BREAKING-CHANGE: change Pydantic Vector field to be nullable by default.
Closes #1577
2024-11-23 13:33:52 -08:00
Will Jones
587c0824af feat: flexible null handling and insert subschemas in Python (#1827)
* Test that we can insert subschemas (omit nullable columns) in Python.
* More work is needed to support this in Node. See:
https://github.com/lancedb/lancedb/issues/1832
* Test that we can insert data with nullable schema but no nulls in
non-nullable schema.
* Add `"null"` option for `on_bad_vectors` where we fill with null if
the vector is bad.
* Make null values not considered bad if the field itself is nullable.
2024-11-15 11:33:00 -08:00
Lei Xu
4c9bab0d92 fix: use pandas with pydantic embedding column (#1818)
* Make Pandas `DataFrame` works with embedding function + Subset of
columns
* Make `lancedb.create_table()` work with embedding function
2024-11-11 14:48:56 -08:00
fzowl
cbbc07d0f5 feat: voyageai support (#1799)
Adding VoyageAI embedding and rerank support
2024-11-09 00:51:20 +05:30
James Wu
38eb05f297 fix(python): remove dependency on retry package (#1749)
## user story

fixes https://github.com/lancedb/lancedb/issues/1480

https://github.com/invl/retry has not had an update in 8 years, one if
its sub-dependencies via requirements.txt
(https://github.com/pytest-dev/py) is no longer maintained and has a
high severity vulnerability (CVE-2022-42969).

retry is only used for a single function in the python codebase for a
deprecated helper function `with_embeddings`, which was created for an
older tutorial (https://github.com/lancedb/lancedb/pull/12) [but is now
deprecated](https://lancedb.github.io/lancedb/embeddings/legacy/).

## changes

i backported a limited range of functionality of the `@retry()`
decorator directly into lancedb so that we no longer have a dependency
to the `retry` package.

## tests

```
/Users/james/src/lancedb/python $ ruff check .
All checks passed!
/Users/james/src/lancedb/python $ pytest python/tests/test_embeddings.py
python/tests/test_embeddings.py .......s....                                                                                                                        [100%]
================================================================ 11 passed, 1 skipped, 2 warnings in 7.08s ================================================================
```
2024-10-15 15:13:57 -07:00
rjrobben
e606a455df fix(EmbeddingFunction): modify safe_model_dump to explicitly exclude class fields with underscore (#1688)
Resolve issue #1681

---------

Co-authored-by: rjrobben <rjrobben123@gmail.com>
2024-09-25 11:53:49 -07:00
Lei Xu
915d828cee feat!: set embeddings to Null if embedding function return invalid results (#1674) 2024-09-19 23:16:20 -07:00
Antonio Molner Domenech
a405847f9b fix(python): remove unmaintained ratelimiter dependency (#1603)
The `ratelimiter` package hasn't been updated in ages and is no longer
maintained. This PR removes the dependency on `ratelimiter` and replaces
it with a custom rate limiter implementation.

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2024-09-09 12:35:53 -07:00
Chang She
377832e532 feat(python): support optional vector field in pydantic model (#1097)
The LanceDB embeddings registry allows users to annotate the pydantic
model used as table schema with the desired embedding function, e.g.:

```python
class Schema(LanceModel):
    id: str
    vector: Vector(openai.ndims()) = openai.VectorField()
    text: str = openai.SourceField()
```

Tables created like this does not require embeddings to be calculated by
the user explicitly, e.g. this works:

```python
table.add([{"id": "foo", "text": "rust all the things"}])
```

However, trying to construct pydantic model instances without vector
doesn't because it's a required field.

Instead, you need add a default value:

```python
class Schema(LanceModel):
    id: str
    vector: Vector(openai.ndims()) = openai.VectorField(default=None)
    text: str = openai.SourceField()
```

then this completes without errors:
```python
table.add([Schema(id="foo", text="rust all the things")])
```

However, all of the vectors are filled with zeros. Instead in
add_vector_col we have to add an additional check so that the embedding
generation is called.
2024-04-05 16:32:15 -07:00
Weston Pace
2cec2a8937 feat: add a basic async python client starting point (#1014)
This changes `lancedb` from a "pure python" setuptools project to a
maturin project and adds a rust lancedb dependency.

The async python client is extremely minimal (only `connect` and
`Connection.table_names` are supported). The purpose of this PR is to
get the infrastructure in place for building out the rest of the async
client.

Although this is not technically a breaking change (no APIs are
changing) it is still a considerable change in the way the wheels are
built because they now include the native shared library.
2024-04-05 16:31:34 -07:00