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demo.py

@@ -1,3 +1,13 @@
+import os
+while True:
+    try:
+        import cv2
+    except ImportError:
+        print("Package cv2 not found. Attepting installation.")
+        os.system("pip install -U opencv-python &> /dev/null")
+        continue
+    break
+
 import os, cv2, time, math
 print("=> Loading libraries...")
 start = time.time()