CODEWITHSUNDEEP
pythonpython-3.xpack
user3603948
user3603948

Reputation: 153

Python3 Convert one INT to HEX

def convert_output (output):
    return (struct.pack('i', output))

while True:
    pygame.event.pump()
    joystick = pygame.joystick.Joystick(0)
    joystick.init()

    X_AX = int(joystick.get_axis(0) * 100)

    DATA = convert_output(X_AX)

    print("message:", (DATA), "----", hex(X_AX), "----", X_AX)

How can I get the same output in DATA as hex(X_AX)? I need X_AX as one byte HEX for UDP communication.

Current output looks like:

message: b'\x00\x00\x00\x00' ---- 0x0 ---- 0
message: b'\x18\x00\x00\x00' ---- 0x18 ---- 24

X_AX range is -100 to 100

Upvotes: 0

Views: 526

Answers (1)

ShadowRanger
ShadowRanger

Reputation: 155363

If you want a single byte representation, call struct.pack with format code b instead of i, and it will output a single signed byte (which can represent all values from -128 to 127 inclusive, handling the -100 to 100 range you require). The repr of said byte in the example case would be b'\x18' when print-ed, but when you write it to a socket or file in binary mode, the raw byte itself would be written.

See the struct module's format code documentation for other options by size.

Upvotes: 1

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