I am trying to recreate pre-V2 electrum addresses from mnemonics, however, I can not seem to get the address to be correct. Any insight?

I am creating a python program to recreate wallet addresses from mnemonics, which sounds simple, but I can not get the addresses for Old Electrum (pre-v2) to match the addresses I get from the official GUI wallet.

I can not seem to find too much information about Electrum address generation prior to V2, so any information helps.

Would anyone have any insight as to what I am doing wrong?

import hashlib, ecdsa, base58

def load_wordlist(filename):
    with open(filename, 'r') as f:
        return [word.strip() for word in f.readlines()]

# Decoding mnemonic into Electrum v1 seed (entropy)
def mnemonic_to_entropy(mnemonic, wordlist):
    words = mnemonic.split()
    entropy_bits = ''
    for word in words:
        index = wordlist.index(word)
        entropy_bits += bin(index)[2:].zfill(11)

    # Pading entropy_bits with zeros to make it byte-aligned
    extra_bits = len(entropy_bits) % 8
    if extra_bits != 0:
        entropy_bits = entropy_bits.ljust(len(entropy_bits) + (8 - extra_bits), '0')

    entropy_hex = hex(int(entropy_bits, 2))[2:].zfill(len(entropy_bits) // 4)
    return bytes.fromhex(entropy_hex)

# Generating private key from entropy + index
def electrum_v1_privkey(entropy, index):
    data = entropy + index.to_bytes(4, 'little')
    return hashlib.sha256(data).digest()

# Converting private key to compressed public key
def privkey_to_pubkey(privkey):
    sk = ecdsa.SigningKey.from_string(privkey, curve=ecdsa.SECP256k1)
    vk = sk.verifying_key
    prefix = b'\x02' if vk.to_string()[-1] % 2 == 0 else b'\x03'
    return prefix + vk.to_string()[:32]

# Converting public key to address
def pubkey_to_address(pubkey):
    sha256_pubkey = hashlib.sha256(pubkey).digest()
    ripemd160_pubkey = hashlib.new('ripemd160', sha256_pubkey).digest()
    prefixed_pubkey = b'\x00' + ripemd160_pubkey
    checksum = hashlib.sha256(hashlib.sha256(prefixed_pubkey).digest()).digest()[:4]
    return base58.b58encode(prefixed_pubkey + checksum).decode()

mnemonic = "sample mnemonic"
wordlist = load_wordlist('old_electrum_wordlist')

entropy = mnemonic_to_entropy(mnemonic, wordlist)

# Generating first 5 addresses
for index in range(5):
    privkey = electrum_v1_privkey(entropy, index)
    pubkey = privkey_to_pubkey(privkey)
    address = pubkey_to_address(pubkey)
    print(f'Address {index}: {address}')

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