Iniital commit

app.py

@@ -7,18 +7,19 @@ from fastapi.responses import FileResponse, HTMLResponse, RedirectResponse
 from fastapi.middleware.cors import CORSMiddleware
 from typing import Optional
 
-# Add the project root and backend directory to the Python path
+# Set up paths
 project_root = os.path.abspath(os.path.dirname(__file__))
 backend_dir = os.path.join(project_root, "backend")
 
-# Add to Python path if not already there
+# Add necessary directories to Python path
 for path in [project_root, backend_dir]:
     if path not in sys.path:
         sys.path.insert(0, path)
         print(f"Added to path: {path}")
 
-# Print the current Python path for debugging
 print(f"Python path: {sys.path}")
+print(f"Current working directory: {os.getcwd()}")
+print(f"Project root: {project_root}")
 
 app = FastAPI()
 
@@ -73,28 +74,29 @@ async def health_check():
 # Try to import and mount the backend API routes
 try:
     print("Attempting to import backend routes...")
-    # Import the backend app directly from the module
-    from backend.app.main import app as backend_app
+    
+    # First try absolute import
+    try:
+        from backend.main import app as backend_app
+        print("Imported backend using absolute import")
+    except ImportError as e:
+        # Fall back to relative import if absolute fails
+        try:
+            from .backend.main import app as backend_app
+            print("Imported backend using relative import")
+        except ImportError as e2:
+            print(f"Absolute import failed: {e}")
+            print(f"Relative import failed: {e2}")
+            raise ImportError("Could not import backend using either absolute or relative imports")
     
     # Mount the backend API under /api
     app.mount("/api", backend_app)
-    print("Backend routes mounted at /api")
-    
-    # Also include backend routes directly in the root app
     app.include_router(backend_app.router, prefix="/api")
+    print("Backend routes mounted at /api")
     
 except ImportError as e:
-    import traceback
-    print(f"Error importing backend routes: {e}")
-    print("Traceback:")
-    traceback.print_exc()
+    print(f"Warning: Could not import backend routes: {e}")
     print("Running in frontend-only mode")
-    print(f"Python path: {sys.path}")
-    print(f"Current working directory: {os.getcwd()}")
-    print(f"Directory contents: {os.listdir('.')}")
-    print(f"Backend directory exists: {os.path.exists('backend')}")
-    if os.path.exists('backend'):
-        print(f"Backend directory contents: {os.listdir('backend')}")
 
 # Serve the frontend for all routes - this should be the last route
 @app.get("/{full_path:path}", response_class=HTMLResponse)

backend/__init__.py

@@ -3,5 +3,7 @@
 This package contains the backend implementation for the PDF-based Q&A Chatbot.
 """
 
-# This file makes the backend directory a Python package
-# It can be empty, but it must exist for Python to recognize the directory as a package
+# Make the app available at the package level
+from .main import app
+
+__all__ = ['app']

backend/__main__.py

@@ -3,8 +3,20 @@ Entry point for running the backend as a module.
 Example: python -m backend
 """
 
-from .main import app
+import os
+import sys
+from pathlib import Path
+
+# Add the backend directory to the Python path
+backend_dir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+if backend_dir not in sys.path:
+    sys.path.insert(0, backend_dir)
+
+# Import the app after setting up the path
+from backend.main import app
 
 if __name__ == "__main__":
     import uvicorn
+    print("Starting backend server...")
+    print(f"Python path: {sys.path}")
     uvicorn.run("backend.main:app", host="0.0.0.0", port=8000, reload=True)

backend/main.py

@@ -1,22 +1,21 @@
-from fastapi import FastAPI
-from fastapi.middleware.cors import CORSMiddleware
-from fastapi.staticfiles import StaticFiles
-import logging
 import os
 import sys
+import logging
 from pathlib import Path
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
 
-# Add the backend directory to the Python path for local development
+# Add the backend directory to Python path
 backend_dir = os.path.abspath(os.path.dirname(__file__))
 if backend_dir not in sys.path:
     sys.path.insert(0, backend_dir)
 
-# Use relative imports for the application code
-from .app.core.config import settings
-from .app.core.database import create_tables, SessionLocal
-from .app.models.document import Document, ChatMessage
-from .app.api.endpoints import documents, chat
-from .app.services.vector_store import VectorStore
+# Use absolute imports for the application code
+from app.core.config import settings
+from app.core.database import create_tables, SessionLocal
+from app.models.document import Document, ChatMessage
+from app.api.endpoints import documents, chat
+from app.services.vector_store import VectorStore
 import shutil
 
 # Configure logging