def generate_key():
generator = secp256k1_generator
rand = codecs.encode(os.urandom(32), 'hex').decode()
secret_exponent = int('0x' + rand, 0)
key = Key(secret_exponent=secret_exponent, generator=generator)
print(key.wif()) #wif-format
print(key.sec_as_hex()) #hex-format
print(key.address()) #btc-address uncompressed
print(key.public_copy()) #public key uncompressed
key._prefer_uncompressed = False
print(key.address()) #btc-address compressed
print(key.public_copy()) #public key compressed
print(secret_exponent) #for reuse purpose
return key
