Update app.py

app.py

@@ -19,11 +19,11 @@ def decode(im,col):
         rgb_tup = tuple(int(h1[i:i+2], 16) for i in (0, 2, 4))
         for item in datas:
             if item[0] == rgb_tup[0] and item[1] == rgb_tup[1] and item[2] == rgb_tup[2]:
-                newData.append((0,0,0))
+                newData.append(0,0,0)
             else:
                 newData.append(255,255,255)
         qr_img.putdata(newData)
-        qr_img.save(f'conv_im.png')
+        qr_img.save('conv_im.png')
         img = cv2.imread('conv_im.png')
         try:
             results = zxingcpp.read_barcodes(img)