Update app.py

app.py

@@ -1,8 +1,13 @@
 import cv2
 import streamlit as st
 
-cap = cv2.VideoCapture(0)
-
+for i in range(-1, 10):  # Try indices from 0 to 9
+    cap = cv2.VideoCapture(i)
+    if cap.isOpened():
+        print(f"Camera index {i} is open.")
+        cap.release()
+    else:
+        print(f"Camera index {i} is not open.")
 st.title("Sign Language App")
 
 frame_placeholder = st.empty()