Update app.py

app.py

@@ -350,11 +350,11 @@ def decrypt_json(im,enc_in=None):
             mes5=mes5.strip("b'").strip("'")
             json_bytes = bytes(mes5,'utf-8')
             file_out = open("encrypted_data.bin", "wb")
-            [ file_out.write(x) for x in (json_bytes) ]
+            [ file_out.write(json_bytes) ]
             file_out.close()   
             file_in = open("encrypted_data.bin", "rb")
             json_bytes = \
-               [ file_in.read(x) for x in (-1) ]
+               [ file_in.read() ]
             file_in.close()