StellarCN/py-stellar-base

"""
Let's assume Alice and Bob hold an escrow account and now they want to
send 100 XLM from the escrow account to Eve, the following code shows how to achieve it.

I recommend that you check the `./set_up_multisig_account.py` before reading this example.
"""
from stellar_sdk import Asset, Network, Server, TransactionBuilder, TransactionEnvelope

escrow_public = "GD7ZZHKFKFPV2KR6JPE5L6QOZ43LV6HBJWLITCC73V6R7YFERSAITE4S"
alice_secret = "SDKE26TSKMJDWPTWMA5YJYSIA6VQ5QNBUS5VEUR7P6NY4F7ITL7ZILQG"
bob_secret = "SBVFXGIXA22LSNZQKXCTNBRBFHBPRWBGZ7KNWAEINCYCPMNFGJDFPWA2"
eve_public = "GAPE2V77237AQJGTFNYNI3RBMERSFLTUYPVXDMANXUGUN6IEWCVY3VXN"

network_passphrase = Network.TESTNET_NETWORK_PASSPHRASE
server = Server(horizon_url="https://horizon-testnet.stellar.org")

escrow_account = server.load_account(eve_public)
base_fee = 100

transaction = (
    TransactionBuilder(
        source_account=escrow_account,
        network_passphrase=network_passphrase,
        base_fee=base_fee,
    )
    .add_text_memo("Hello, Stellar!")
    .append_payment_op(eve_public, Asset.native(), "100")
    .set_timeout(30)
    .build()
)

# Now Alice signs this transaction and sends the generated XDR to Bob
transaction.sign(alice_secret)
xdr = transaction.to_xdr()
print(f"xdr: {xdr}")

# Bob receives this XDR and signs it.
transaction = TransactionEnvelope.from_xdr(xdr, network_passphrase)
transaction.sign(bob_secret)
print(f"xdr: {transaction.to_xdr()}")

# Last, you can submit it to the network
resp = server.submit_transaction(transaction)