Update app.py

app.py

@@ -9,29 +9,34 @@ sys.stdout.flush()
 os.environ.setdefault("NUMBA_CACHE_DIR", "/tmp/numba_cache")
 os.makedirs(os.environ["NUMBA_CACHE_DIR"], exist_ok=True)
 
-# ── 2. UNIVERSAL numba cache kill-switch  ───────────────────────────────
+# ── 2. FINAL numba cache kill-switch  ────────────────────────────────────
 try:
-    import numba
+    import importlib, numba, types
     from numba.core import dispatcher, caching
+    import numba.np.ufunc.ufuncbuilder as ufuncbuilder
 
-    # 2-a  UMAP path: make Dispatcher.enable_caching a no-op
+    # 2-a  UMAP path: no-op dispatcher method
     dispatcher.Dispatcher.enable_caching = lambda self: None
 
-    # 2-b  PyNNDescent path: replace FunctionCache with stub
+    # 2-b  Build a stub that pretends to be a FunctionCache
     class _NoCache(types.SimpleNamespace):
-        """Dummy replacement that never touches disk."""
         def __init__(self, *_, **__): pass
-        load_overload  = lambda *_, **__: False
-        save_overload  = lambda *_, **__: None
-        enable_caching = lambda *_, **__: None
-    caching.FunctionCache = _NoCache
+        load_overload   = lambda *_, **__: False
+        save_overload   = lambda *_, **__: None
+        enable_caching  = lambda *_, **__: None
 
-    # 2-c  Extra belt-and-braces env flag
+    # 2-c  Patch *every* place that still holds a reference
+    caching.FunctionCache           = _NoCache        # core path
+    ufuncbuilder.FunctionCache      = _NoCache        # PyNNDescent path
+
+    # 2-d  Extra belt-and-braces flag
     os.environ["NUMBA_DISABLE_CACHE"] = "1"
 
 except ImportError:
-    # numba not yet present during first pip install – harmless
+    # numba isn't installed yet during first pip install – harmless
     pass
+# ─────────────────────────────────────────────────────────────────────────
+
 
 # ── 3. Heavy imports (UMAP, BERTopic, FastAPI, …) ───────────────────────
 from typing import List