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struct - Python: unpacking byte packed message

I am trying to decode some binary messages. According to vendor document it byte pack protocol messages. The length of the byte packed part is multiple of 4 bytes. When I am trying to decode a message

byte = b'x1d7x00xdd x00x00x00x08I>[x04=$50lQx00x03"x02R`-xe80x8ax00}$x00
x00x14x80x80x80x80x80x80x04x04x80x80x80x80x80x80x80x80x80x80x80x80x80x80x00x00x80x80x80x80x80x80x80x80x80x80x00'
b'x1d7x00xdd'

for i in range(0, len(byte), 4):
    
    test = byte[i:i+4]
   
    print(test)
    print(struct.unpack('>format', test)[0])

I am not getting any ascii like messages with any format. Just wondering if someone can help me solve this.


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