import base64, hashlib
 
# paste your key on line 6
key = """
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAq70QBDr+NHzDyYCbbL+rjQsEb+X3FiwY3FSIx7Z5Mx6/rhXBtrHDYQV1m/VJjuU+8rLZeDO6RLZXmJtigHDrgyZyS3toCRfgJyIszGJbcoblfyotNJ9Pxv/fsk2HZDDHRxtvie07+QCQ/MuMdw45fQO9PcEBIfHds8oxanrSyOQTIX94hFfoNTJ5vYAwXvE/sXZbHnOMzLEDT9yDjOadMw1ZsUDElqGi/QIyb/JrlG0kzOipUs+bgVyhw7qLhQ+0NgqTq6QxqK1ojrs9mYA4E6+OiyzyCjsZoT2SFhALLAX9SP5slut03PCIlMD5JmuIVDPaYpBe5iXZwAOKBv8dTw==
 
"""
 
def lineToFingerprint(line):
    key = base64.b64decode(line.strip().split()[1].encode('ascii'))
    fp_plain = hashlib.md5(key).hexdigest()
    return ':'.join(a+b for a,b in zip(fp_plain[::2], fp_plain[1::2]))
 
print(lineToFingerprint(key))

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