Transaction with several utxos

[caqs]

Hi everyone!

I'm trying to make a Transaction from an address that has several utxos. If I build an array of Inputs, and then make the Transaction it fails:

############# Balance=1BTC / utxo1[value]=0.5BTC / utxo2[value]=0.5BTC #############
inp1 = Input(prev_hash='xxxxx',output_index=0,keys=pubkey.public(), network='testnet') #from utxo1
inp2 = Input(prev_hash='yyyy',output_index=0,keys=pubkey.public(), network='testnet') #from utxo2
out = Output(100000000, address=addr_to, network='testnet')

t = Transaction(inputs=[inp1,inp2],outputs=[out], network='testnet')
t.sign(private)
t.verify() # False

But if I try to make a Transaction only using the information from one utxo, it's completed ok:

############# Balance=1BTC / utxo1[value]=0.5BTC / utxo2[value]=0.5BTC #############
inp1 = Input(prev_hash='xxxxx',output_index=0,keys=pubkey.public(), network='testnet') #from utxo1
out = Output(50000000, address=addr_to, network='testnet')

t = Transaction(inputs=[inp1],outputs=[out], network='testnet')
t.sign(private)
t.verify() # True

Is there any way to build a Transaction from several utxo's?

[mccwdev]

Yes there seems to be a problem in the verify method, will take a look into it.

[mccwdev]

It's the sign method, it doesn't sign the second input because it uses the same key.
You can sign it like this to workaround this issue:
t.sign(private, tid=0)
t.sign(private, tid=1)

[mccwdev]

Your code should work as expected after this branch is merged:
https://github.com/1200wd/bitcoinlib/tree/fix-duplicate-key-inputs

[caqs]

Thanks a lot! I'm trying this way before going to another branch.

Regards!