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@@ -1,38 +1,13 @@
 FROM python:3.10-slim
-
 WORKDIR /app
 
-# Copy project files into the image
 COPY . /app
 
-# Install system dependencies if needed (optional, keep minimal)
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential \
-    && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y --no-install-recommends     build-essential     && rm -rf /var/lib/apt/lists/*
 
-# Install Python dependencies
-# NOTE: websockets version is NOT pinned to 12.0 to avoid conflict with gradio_client
-RUN pip install --no-cache-dir \
-    fastapi==0.104.1 \
-    uvicorn[standard]==0.24.0 \
-    pydantic==2.5.0 \
-    python-multipart==0.0.6 \
-    SQLAlchemy==2.0.23 \
-    APScheduler==3.10.4 \
-    aiohttp==3.9.1 \
-    requests==2.31.0 \
-    httpx \
-    python-dotenv==1.0.0 \
-    feedparser==6.0.11 \
-    gradio==4.14.0 \
-    pandas==2.1.4 \
-    plotly==5.18.0
+RUN pip install --no-cache-dir     fastapi==0.104.1     uvicorn[standard]==0.24.0     pydantic==2.5.0     python-multipart==0.0.6     SQLAlchemy==2.0.23     APScheduler==3.10.4     aiohttp==3.9.1     requests==2.31.0     httpx     python-dotenv==1.0.0     feedparser==6.0.11     gradio==4.14.0     pandas==2.1.4     plotly==5.18.0
 
-# Expose the port that Hugging Face expects (7860 by default)
 EXPOSE 7860
-
-# For HF Spaces compatibility
 ENV PORT=7860
 
-# Main entrypoint: use main:app (FastAPI)
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--proxy-headers", "--forwarded-allow-ips", "*"]

main.py

@@ -1,38 +1,21 @@
-"""Main entrypoint for Uvicorn / Hugging Face.
+from pathlib import Path
+import importlib.util
+from fastapi import FastAPI
 
-This file tries to dynamically locate the FastAPI `app` instance
-from a few common module locations, so it works regardless of whether
-the project structure uses `app.py` at root or an `app/` package.
-"""
+def load_fastapi_app() -> FastAPI:
+    root = Path(__file__).resolve().parent
+    app_file = root / "app.py"
+    if not app_file.exists():
+        raise RuntimeError("app.py not found in project root; expected FastAPI app instance in app.py")
+    spec = importlib.util.spec_from_file_location("root_app_module", app_file)
+    module = importlib.util.module_from_spec(spec)  # type: ignore[arg-type]
+    assert spec.loader is not None
+    spec.loader.exec_module(module)  # type: ignore[call-arg]
+    if not hasattr(module, "app"):
+        raise RuntimeError("FastAPI instance `app` not found in app.py")
+    fastapi_app = getattr(module, "app")
+    if not isinstance(fastapi_app, FastAPI):
+        raise RuntimeError("`app` in app.py is not a FastAPI instance")
+    return fastapi_app
 
-from importlib import import_module
-from typing import Any
-
-def _try_import(path: str) -> Any:
-    try:
-        module = import_module(path)
-    except Exception:
-        return None
-    return getattr(module, "app", None)
-
-# Candidate modules (ordered)
-_CANDIDATES = [
-    "app",          # root app.py OR app/__init__.py exposes `app`
-    "app.app",      # app/app.py -> app
-    "app.main",     # app/main.py -> app
-    "backend.app",  # backend/app.py -> app
-    "backend.main", # backend/main.py -> app
-]
-
-app = None
-for candidate in _CANDIDATES:
-    app_candidate = _try_import(candidate)
-    if app_candidate is not None:
-        app = app_candidate
-        break
-
-if app is None:
-    raise RuntimeError(
-        "Could not locate FastAPI `app` instance. "
-        "Tried modules: " + ", ".join(_CANDIDATES)
-    )
+app = load_fastapi_app()