fixed imports and changed dockerfile

Dockerfile

@@ -30,11 +30,12 @@ RUN pip install -r requirements.txt
 # Copy the API files
 COPY ./api .
 
-ENV PYTHONPATH="/app"
-
 # Copy the serialized engine from the first stage
 COPY --from=core /app/core/engine.pickle /app/api/engine.pickle
 
+# Set the PYTHONPATH to include the /app directory
+ENV PYTHONPATH="/app"
+
 # Expose the API port
 EXPOSE 9999
 

api/web_server.py

@@ -1,7 +1,7 @@
 import dill
 from fastapi import FastAPI, HTTPException
 from pydantic import BaseModel
-from ..core.search_engine import PromptSearchEngine
+from core.search_engine import PromptSearchEngine
 
 
 class Query(BaseModel):