Python: v0.3.0 release

.github/workflows/python.yml

@@ -71,9 +71,9 @@ jobs:
           manylinux: auto
           working-directory: bindings/python
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: wheels
+          name: wheels-linux-${{ matrix.target }}
           path: bindings/python/dist
           if-no-files-found: error
       - name: pytest
@@ -108,9 +108,9 @@ jobs:
           sccache: "true"
           working-directory: bindings/python
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: wheels
+          name: wheels-windows-${{ matrix.target }}
           path: bindings/python/dist
           if-no-files-found: error
       - name: pytest
@@ -144,9 +144,9 @@ jobs:
           sccache: "true"
           working-directory: bindings/python
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: wheels
+          name: wheels-macos-${{ matrix.target }}
           path: bindings/python/dist
           if-no-files-found: error
       - name: pytest
@@ -173,9 +173,9 @@ jobs:
           args: --out dist
           working-directory: bindings/python
       - name: Upload sdist
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: wheels
+          name: wheels-sdist
           path: bindings/python/dist
           if-no-files-found: error
 
@@ -187,7 +187,9 @@ jobs:
     steps:
       - uses: actions/download-artifact@v4
         with:
-          name: wheels
+          path: wheels
+          pattern: wheels-*
+          merge-multiple: true
       - name: Publish to PyPI
         uses: PyO3/maturin-action@v1
         env:

bindings/python/CHANGELOG.md

@@ -1,5 +1,16 @@
 # Changelog
 
+## v0.3.0
+
+### What's New
+
+- Update to `v0.5.0` of `text-splitter` for significant performance improvements for generating chunks with the `tokenizers` or `tiktoken-rs` crates by applying binary search when attempting to find the next matching chunk size.
+
+### Breaking Changes
+
+- Minimum Python version is now 3.8.
+- Due to using binary search, there are some slight differences at the edges of chunks where the algorithm was a little greedier before. If two candidates would tokenize to the same amount of tokens that fit within the capacity, it will now choose the shorter text. Due to the nature of of tokenizers, this happens more often with whitespace at the end of a chunk, and rarely effects users who have set `trim_chunks=true`. It is a tradeoff, but would have made the binary search code much more complicated to keep the exact same behavior.
+
 ## v0.2.4
 
 ### What's New

bindings/python/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "semantic-text-splitter"
-version = "0.2.4"
+version = "0.3.0"
 authors = ["Ben Brandt <[email protected]>"]
 edition = "2021"
 description = "Split text into semantic chunks, up to a desired chunk size. Supports calculating length by characters and tokens (when used with large language models)."
@@ -14,8 +14,8 @@ name = "semantic_text_splitter"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.20.0", features = ["abi3-py37"] }
-text-splitter = { version = "0.4.5", features = ["tiktoken-rs", "tokenizers"] }
+pyo3 = { version = "0.20.0", features = ["abi3-py38"] }
+text-splitter = { version = "0.5.0", features = ["tiktoken-rs", "tokenizers"] }
 tiktoken-rs = "0.5.8"
 tokenizers = { version = "0.15.0", default_features = false, features = [
     "onig",

bindings/python/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "semantic-text-splitter"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 classifiers = [
     "Programming Language :: Rust",
     "Programming Language :: Python :: Implementation :: CPython",

bindings/python/tests/test_integration.py

@@ -32,14 +32,14 @@ def test_hugging_face():
     tokenizer = Tokenizer.from_pretrained("bert-base-uncased")
     splitter = HuggingFaceTextSplitter(tokenizer, trim_chunks=False)
     text = "123\n123"
-    assert splitter.chunks(text, 1) == ["123\n", "123"]
+    assert splitter.chunks(text, 1) == ["123", "\n123"]
 
 
 def test_hugging_face_range():
     tokenizer = Tokenizer.from_pretrained("bert-base-uncased")
     splitter = HuggingFaceTextSplitter(tokenizer, trim_chunks=False)
     text = "123\n123"
-    assert splitter.chunks(text=text, chunk_capacity=(1, 2)) == ["123\n", "123"]
+    assert splitter.chunks(text=text, chunk_capacity=(1, 2)) == ["123", "\n123"]
 
 
 def test_hugging_face_trim():