Update app.py

app.py

@@ -23,7 +23,7 @@ def process_vid(file):
     frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
     rev_img_searcher = ReverseImageSearcher()
     try:
-        for i in frame_count-1:
+        for i in range(frame_count-1):
             print(i)
             capture.set(cv2.CAP_PROP_POS_FRAMES, i)
             ret, frame_f = capture.read(i)