Transactions using solana python

Question

I'm trying to make an arbitrage program. Although I'm not able to write the transactions code using solana. I did refer from here(Sending solana transactions with python). I've made 2 accounts one with phantom and another with solflare. Hence, the account in the following code has public keys from phantom and new_account has public keys from solflare.

def perform_transaction():
    private_key = PRIVATEKEYPHANTOM
    keypair = get_keypair(private_key)

    cli = Client('https://solana-api.projectserum.com')
    account = Account(keypair[:32])
    new_account = Account(KEYPAIRSOLFLARE[:32])
    # print(new_account.public_key())
    # print(new_account.keypair())
    transaction = Transaction()
    transaction.add(sp.create_account(sp.CreateAccountParams(
            from_pubkey=account.public_key(),
            new_account_pubkey=new_account.public_key(),
            lamports=cli.get_minimum_balance_for_rent_exemption(88).get('result'),
            space=88,
            program_id=PublicKey(a_public_key),
        )))
    send_tx = cli.send_transaction(transaction, new_account)
    print(transaction)

I get the following error

raise ValueError("invalid public key input:", value) from err
ValueError: ('invalid public key input:', '<solana.account.Account object at 0x7f8ca6429d00>')

I've never dealt with crypto transactions and this might be a very simple error. What's wrong here?

score 0 · Answer 1 · answered Oct 06 '21 at 20:20

0

There's a couple of things you can try. First, you can use the Keypair type instead, since Account is deprecated, specifically using from_secret_key: https://github.com/michaelhly/solana-py/blob/a366253a3f043979bc6f61869ee8faad98292dc2/solana/keypair.py#L46

If that still doesn't work, the format of the private key is likely incorrect. Phantom generates private keys as base-64 strings, whereas these functions are expecting byte arrays. You can convert between the two using some of the answers at Import phantom wallet private key into solana CLI

answered Oct 06 '21 at 20:20

Jon C

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17

This is better than before. Although, I still get the same error mentioned in the question. – Noob Oct 07 '21 at 11:59
Also, when I try to get the balance using keypair.public_key, I get 0, but when I try with my wallet address, I get the real balance. You had such situations? – Noob Oct 07 '21 at 13:57
1

This likely means that the format of the private key is incorrect -- you can check if `keypair.public_key` is equal to your wallet address as a sanity check. – Jon C Oct 13 '21 at 21:35

Transactions using solana python

1 Answers1