fix(provider): adapt anthropic source to httpx2 rename in anthropic 1.0.0 (#9791)

anthropic 1.0.0 renamed the bundled ``_base_client.httpx`` module to
``_base_client.httpx2``. The previous ``getattr(_base_client, "httpx",
httpx)`` fallback silently reverted to the global httpx import, which can
break the SDK's isinstance validation when a proxy client is used. Resolve
the SDK's own module in version-agnostic order (httpx → httpx2 → global)
and update the corresponding unit test to assert against the same
resolution.

astrbot/core/provider/sources/anthropic_source.py

@@ -131,7 +131,14 @@ class ProviderAnthropic(Provider):
         try:
             from anthropic import _base_client as anthropic_base_client
 
-            httpx_module = getattr(anthropic_base_client, "httpx", httpx)
+            # anthropic <1.0.0 exposes the bundled httpx as ``_base_client.httpx``;
+            # 1.0.0+ renamed it to ``_base_client.httpx2``. Prefer the SDK's own
+            # module in either case and fall back to the global httpx import.
+            httpx_module = getattr(
+                anthropic_base_client,
+                "httpx",
+                getattr(anthropic_base_client, "httpx2", httpx),
+            )
         except ImportError:
             pass
         return create_proxy_client(

tests/test_anthropic_kimi_code_provider.py

@@ -134,10 +134,19 @@ def test_create_http_client_uses_anthropic_httpx_module(monkeypatch):
 
     from anthropic import _base_client as anthropic_base_client
 
+    # anthropic <1.0.0 exposes the bundled httpx as ``_base_client.httpx``;
+    # 1.0.0+ renamed it to ``_base_client.httpx2``. Resolve the SDK's own module
+    # the same way the production code does so the assertion stays version-agnostic.
+    expected_httpx_module = getattr(
+        anthropic_base_client,
+        "httpx",
+        getattr(anthropic_base_client, "httpx2", None),
+    )
+
     assert captured["provider_label"] == "Anthropic"
     assert captured["proxy"] == "http://127.0.0.1:7890"
     assert captured["headers"] == {"X-Trace-Id": "trace-1"}
-    assert captured["httpx_module"] is anthropic_base_client.httpx
+    assert captured["httpx_module"] is expected_httpx_module
 
 
 def test_create_http_client_falls_back_to_global_httpx_module(monkeypatch):