Making chromadb package optional dependency (#174)

Merging without signed commit

Author: Krishn1412

chroma_dp/__init__.py

@@ -1,3 +1,10 @@
+try:
+    import chromadb  # noqa: F401
+except ImportError:
+    raise ValueError(
+        "The chromadb is not installed. This package (chromadbx) requires that Chroma is installed to work. "
+        "Please install it with `pip install chromadb`"
+    )
 from typing import (
     Optional,
     Sequence,

pyproject.toml

@@ -16,7 +16,7 @@ packages = [{ include = "chroma_dp" }]
 
 [tool.poetry.dependencies]
 python = ">=3.9,<3.12"
-chromadb = ">=0.4.0,<0.6.0"
+chromadb = { version = ">=0.4.0,<0.6.0", optional = true }
 datasets = "^2.15.0"
 tqdm = "^4.66.1"
 rich = "^13.7.0"