move tantivy-py installation to be separate from wheel (#97)

pypi does not allow packages to be uploaded that has a direct reference

for now we'll just ask the user to install tantivy separately

---------

Co-authored-by: Chang She <chang@lancedb.com>

python/lancedb/fts.py

@@ -16,7 +16,13 @@ import os
 from typing import List, Tuple
 
 import pyarrow as pa
-import tantivy
+
+try:
+    import tantivy
+except ImportError:
+    raise ImportError(
+        "Please install tantivy-py `pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985` to use the full text search feature."
+    )
 
 from .table import LanceTable
 

python/lancedb/query.py

@@ -153,7 +153,7 @@ class LanceFtsQueryBuilder(LanceQueryBuilder):
             import tantivy
         except ImportError:
             raise ImportError(
-                "You need to install the `lancedb[fts]` extra to use this method."
+                "Please install tantivy-py `pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985` to use the full text search feature."
             )
 
         from .fts import search_index

python/pyproject.toml

@@ -45,10 +45,6 @@ dev = [
 docs = [
     "mkdocs", "mkdocs-jupyter", "mkdocs-material", "mkdocstrings[python]"
 ]
-fts = [
-    # tantivy 0.19.2
-    "tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985"
-]
 
 [build-system]
 requires = [

python/tests/test_embeddings.py

@@ -14,7 +14,6 @@ import sys
 
 import numpy as np
 import pyarrow as pa
-
 from lancedb.embeddings import with_embeddings
 
 

python/tests/test_fts.py

@@ -13,13 +13,13 @@
 import os
 import random
 
+import lancedb.fts
 import numpy as np
 import pandas as pd
 import pytest
 import tantivy
 
 import lancedb as ldb
-import lancedb.fts
 
 
 @pytest.fixture

python/tests/test_query.py

@@ -17,7 +17,6 @@ import pandas as pd
 import pandas.testing as tm
 import pyarrow as pa
 import pytest
-
 from lancedb.query import LanceQueryBuilder
 
 

python/tests/test_table.py

@@ -16,7 +16,6 @@ from pathlib import Path
 import pandas as pd
 import pyarrow as pa
 import pytest
-
 from lancedb.table import LanceTable