We didn't actually import `path`

src/objectifier.py

@@ -4,7 +4,7 @@ from detector import Detector
 from fastapi import FastAPI, HTTPException, Request, UploadFile, File
 from fastapi.responses import FileResponse
 from os import listdir, remove
-from os.path import getatime, splitext, basename
+from os.path import getatime, splitext, basename, isfile
 from pathlib import Path
 from threading import Thread
 from time import sleep
@@ -135,7 +135,7 @@ def analyze_image(request: Request, image: UploadFile):
 @app.get("/analyzed_images/{image_name}", response_class=FileResponse)
 def get_analyzed_image(image_name: str):
     filename = outgoing_dir / image_name
-    if path.isfile(filename):
+    if isfile(filename):
         return str(filename)
     else:
         raise HTTPException(status_code=404, detail="file not found: " + str(filename))