Wallet in python language

wallet.py

import hashlib,binascii,codecs,base58,ecdsa

class Wallet(object):
    def __init__(self):
        """
            private key
            public key
            address
            https://github.com/burakcanekici/BitcoinAddressGenerator
            https://medium.com/coinmonks/bitcoin-address-generation-on-python-e267df5ff3a3
        """
        dataPem = "";
        with open('walletkey.pem', 'r') as file:
            dataPem = file.read()
            print("{}".format(dataPem))
            privateKey = ecdsa.SigningKey.from_pem(dataPem)
            print("ECDSA Private Key: ", privateKey.to_string().hex())
        
        ecdsaPublicKey = '04' +  privateKey.get_verifying_key().to_string().hex()
        print("ECDSA Public Key: ", ecdsaPublicKey)
        
        hash256FromECDSAPublicKey = hashlib.sha256(binascii.unhexlify(ecdsaPublicKey)).hexdigest()
        print("SHA256(ECDSA Public Key): ", hash256FromECDSAPublicKey)

        ridemp160FromHash256 = hashlib.new('ripemd160', binascii.unhexlify(hash256FromECDSAPublicKey))
        print("RIDEMP160(SHA256(ECDSA Public Key)): ", ridemp160FromHash256.hexdigest())

        prependNetworkByte = '00' + ridemp160FromHash256.hexdigest()
        print("Prepend Network Byte to RIDEMP160(SHA256(ECDSA Public Key)): ", prependNetworkByte)

        hash = prependNetworkByte
        for x in range(1,3):
            hash = hashlib.sha256(binascii.unhexlify(hash)).hexdigest()
            print("\t|___>SHA256 #", x, " : ", hash)

        cheksum = hash[:8]
        print("Checksum(first 4 bytes): ", cheksum)

        appendChecksum = prependNetworkByte + cheksum
        print("Append Checksum to RIDEMP160(SHA256(ECDSA Public Key)): ", appendChecksum)

        self._bitcoinAddress = base58.b58encode(binascii.unhexlify(appendChecksum))
        print("Bitcoin Address: ", self._bitcoinAddress.decode('utf8'))


    def _send(self):
        """
            Create transaction
            sign transaction
        """
        raise AttributeError("Não implementado")

    def _balance(self):
        """
            show balances
        """
        raise AttributeError("Não implementado")

    def _address(self):
        """
            show address
        """
        return self._bitcoinAddress.decode('utf8')

wallet = Wallet()
print(wallet._address())

walletkey.pem

-----BEGIN PRIVATE KEY-----
MIGNAgEAMBAGByqGSM49AgEGBSuBBAAKBHYwdAIBAQQgEruPALWble03fp01nL45
ibaXNefVFXVh4PennCux1fmgBwYFK4EEAAqhRANCAASnSF+TXum0ZI6I4W8afjtB
6qIRbuHhXHgnTM2j9CZcroSvR5JZXXDI02+IdEaT8LkZ5UMb4sxLvWy1B5rXAZ5n
-----END PRIVATE KEY-----