Bitwise invert a string and send it to a socket-CodePudding

how would I invert the bits for a given alphanumeric string and pass it to a socket function?

s = '1q2w3e4r'
stbin = ''

#String to binary
stbin = ''.join(format(ord(x), 'b') for x in s)

#Bitwise invert
stbin = ''.join('1' if x == '0' else '0' for x in stbin)

...

socket.sendall(stbin)

Such that the TCP packets data is: ce 8e cd 88 cc 9a cb 8d?

CodePudding user response：

Don't use strings to do this when there are operators available to work directly on the relevant integer values:

s = '1q2w3e4r'

print(' '.join([f'{ord(c)^255:2x}' for c in s]))

Output:

ce 8e cd 88 cc 9a cb 8d

CodePudding user response：

If you meant to send the string's inverted bytes rather than their hexadecimal representation, you can do it even simpler:

stbin = bytes(ord(x)^255 for x in s)
socket_instance.sendall(stbin)