chore: added ragas.experimental and cleaned dependencies (#2119)

Author: jjmachan

experimental/pyproject.toml

@@ -22,16 +22,13 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
-    "fastcore",
     "tqdm",
-    "langfuse",
     "instructor",
     "pydantic",
     "numpy",
-    "plotly",
-    "mlflow",
     "gitpython",
-    "httpx",
+    "typer",
+    "rich",
 ]
 # Only version remains dynamic (managed by setuptools_scm)
 dynamic = ["version"]
@@ -40,6 +37,7 @@ readme = "README.md"
 [project.optional-dependencies]
 all = ["pandas"]
 examples = ["openai>=1.0.0"]
+tracing = ["langfuse", "mlflow"]
 
 [project.entry-points."ragas.backends"]
 "local/csv" = "ragas_experimental.backends.local_csv:LocalCSVBackend"

ragas/pyproject.toml

@@ -18,6 +18,7 @@ dependencies = [
 dynamic = ["version", "readme"]
 
 [project.optional-dependencies]
+experimental = ["ragas-experimental"]
 all = [
     "sentence-transformers",
     "transformers",
@@ -27,7 +28,8 @@ all = [
     "pandas",
     "datacompy",
     "llama_index",
-    "r2r"
+    "r2r",
+    "ragas-experimental"
 ]
 docs = [
     "mkdocs>=1.6.1",

ragas/src/ragas/__init__.py

@@ -20,3 +20,17 @@
     "CacheInterface",
     "DiskCacheBackend",
 ]
+
+
+def __getattr__(name):
+    if name == "experimental":
+        try:
+            import ragas_experimental as experimental  # type: ignore
+
+            return experimental
+        except ImportError:
+            raise ImportError(
+                "ragas.experimental requires installation: "
+                "pip install ragas[experimental]"
+            )
+    raise AttributeError(f"module 'ragas' has no attribute '{name}'")

ragas/src/ragas/experimental/__init__.py

@@ -0,0 +1,7 @@
+try:
+    from ragas_experimental import *  # noqa: F403, F401  # type: ignore
+except ImportError:
+    raise ImportError(
+        "ragas_experimental is required for experimental features. "
+        "Install with: pip install ragas_experimental"
+    )