duplicate signers in send_transaction will result in an opaque UnconfirmedTxError

[phubaba]

For example if you run code like:

authority = Keypair()
result = client.send_transaction(Transaction(...), authority, authority) 

this will create the UncofirmedTxError.

Should we add a sanity check say in solana/transaction.py", line 235, in sign_partial

if len(set(partial_signers)) != len(partial_signers):
       raise ValueError('duplicate signers will fail')

Then a more clear error will be raised.

[crypt0miester]

For example if you run code like:

authority = Keypair()
result = client.send_transaction(Transaction(...), authority, authority) 

this will create the UncofirmedTxError.

Should we add a sanity check say in solana/transaction.py", line 235, in sign_partial

if len(set(partial_signers)) != len(partial_signers):
       raise ValueError('duplicate signers will fail')

Then a more clear error will be raised.

authority should be in a list

result = client.send_transaction(Transaction(...), *[authority, authority])