fix: upgrade gradio to 4.44.1, pin jinja2 3.1.3, patch template cache unhashable dict bug

README.md

@@ -4,7 +4,7 @@ emoji: 👁️
 colorFrom: indigo
 colorTo: blue
 sdk: gradio
-sdk_version: 4.44.0
+sdk_version: 4.44.1
 app_file: app.py
 pinned: false
 license: mit

app.py

@@ -28,6 +28,21 @@ def _safe_json_schema_to_python_type(schema, defs=None):
 
 _gc_utils._json_schema_to_python_type = _safe_json_schema_to_python_type
 
+# ---------------------------------------------------------------------------
+# Monkey-patch Jinja2 Environment.get_template to prevent
+# TypeError: unhashable type: 'dict' during template caching
+# ---------------------------------------------------------------------------
+import jinja2
+
+_orig_get_template = jinja2.Environment.get_template
+
+def _safe_get_template(self, name, globals=None):
+    if isinstance(name, dict):
+        name = str(name)
+    return _orig_get_template(self, name, globals)
+
+jinja2.Environment.get_template = _safe_get_template
+
 from backend.config import (
     KNOWN_CONFIDENCE_THRESHOLD,
     OPEN_VOCAB_CONFIDENCE_THRESHOLD,

requirements.txt

@@ -1,7 +1,8 @@
 torch>=2.0.0
 torchvision>=0.15.0
 ultralytics>=8.1.0
-gradio>=4.0.0
+gradio>=4.44.1
+jinja2==3.1.3
 huggingface_hub<1.0
 fastapi>=0.100.0
 uvicorn>=0.20.0