remove arize project name

dev_config.yaml

@@ -9,5 +9,6 @@ general_settings:
   master_key: sk-1234
 
 litellm_settings:
+  callbacks: ["arize_phoenix"]
   drop_params: True
   telemetry: False

litellm/integrations/arize/arize_phoenix.py

@@ -69,7 +69,6 @@ class ArizePhoenixLogger(OpenTelemetry):  # type: ignore
         By creating our own provider we guarantee Arize Phoenix always gets
         its own exporter pipeline, regardless of initialisation order.
         """
-        from opentelemetry.sdk.trace import TracerProvider
         from opentelemetry.trace import SpanKind
 
         # LRU cache of project_name -> TracerProvider, bounded to _MAX_PROJECT_PROVIDERS.
@@ -83,11 +82,7 @@ class ArizePhoenixLogger(OpenTelemetry):  # type: ignore
 
         # Resolve the default project name at init time so the first
         # request to the default project hits the cache.
-        default_project = (
-            getattr(self.config, "project_name", None)
-            or os.environ.get("PHOENIX_PROJECT_NAME")
-            or "default"
-        )
+        default_project = self._default_project_name()
         default_provider = self._build_project_provider(default_project)
         self._project_providers[default_project] = default_provider
         self.tracer = default_provider.get_tracer("litellm")
@@ -112,6 +107,13 @@ class ArizePhoenixLogger(OpenTelemetry):  # type: ignore
     # Per-project TracerProvider registry
     # ------------------------------------------------------------------
 
+    def _default_project_name(self) -> str:
+        return (
+            getattr(self.config, "project_name", None)
+            or os.environ.get("PHOENIX_PROJECT_NAME")
+            or "default"
+        )
+
     def _build_project_provider(self, project_name: str):
         """
         Build a fresh TracerProvider whose Resource carries the given
@@ -162,10 +164,10 @@ class ArizePhoenixLogger(OpenTelemetry):  # type: ignore
         Resolve the target Phoenix/Arize project for this request.
 
         Priority:
-        1. metadata.arize_project_name_override  (Arize-specific per-request override)
-        2. metadata.phoenix_project_name         (existing Phoenix per-request param)
-        3. PHOENIX_PROJECT_NAME env var   (this is where default traces would go)
-        5. "default"
+        1. metadata.arize_project_name_override  (per-request override)
+        2. metadata.phoenix_project_name         (per-request Phoenix param)
+        3. PHOENIX_PROJECT_NAME env var
+        4. "default"
         """
 
         def _from_metadata(key: str) -> Optional[str]:
@@ -208,7 +210,6 @@ class ArizePhoenixLogger(OpenTelemetry):  # type: ignore
             _from_metadata("arize_project_name_override")
             or _from_metadata("phoenix_project_name")
             or os.environ.get("PHOENIX_PROJECT_NAME")
-            or os.environ.get("ARIZE_PROJECT_NAME")
             or "default"
         )
 

tests/test_litellm/integrations/arize/test_arize_phoenix.py

@@ -347,23 +347,8 @@ class TestResolveProjectName:
     def test_falls_back_to_phoenix_env_var(self):
         assert ArizePhoenixLogger._resolve_project_name({}) == "env-phoenix"
 
-    @patch.dict(
-        "os.environ",
-        {"ARIZE_PROJECT_NAME": "env-arize"},
-        clear=False,
-    )
-    def test_falls_back_to_arize_env_var(self):
-        for key in ("PHOENIX_PROJECT_NAME",):
-            patch.dict("os.environ", {key: ""}, clear=False).__enter__()
-        with patch.dict("os.environ", {"PHOENIX_PROJECT_NAME": ""}):
-            # PHOENIX_PROJECT_NAME empty string is falsy — should fall to ARIZE_PROJECT_NAME
-            assert ArizePhoenixLogger._resolve_project_name({}) == "env-arize"
-
     def test_ultimate_fallback_is_default(self):
-        with patch.dict(
-            "os.environ",
-            {"PHOENIX_PROJECT_NAME": "", "ARIZE_PROJECT_NAME": ""},
-        ):
+        with patch.dict("os.environ", {"PHOENIX_PROJECT_NAME": ""}):
             assert ArizePhoenixLogger._resolve_project_name({}) == "default"
 
     def test_litellm_params_metadata_also_checked(self):