py-stellar-sdk is a Python library for communicating with a Stellar Horizon server. It is used for building Stellar apps on Python. It supports Python 3.6+ as well as PyPy 3.6+.
It provides:
- a networking layer API for Horizon endpoints.
- facilities for building and signing transactions, for communicating with a Stellar Horizon instance, and for submitting transactions or querying network history.
py-stellar-sdk's documentation can be found at https://stellar-sdk.readthedocs.io.
Install and update using pipenv or pip:
pip install stellar-sdk==3.1.1Building transaction with synchronous server
# Alice pay 10.25 XLM to Bob
from stellar_sdk import Server, Keypair, TransactionBuilder, Network
alice_keypair = Keypair.from_secret("SBFZCHU5645DOKRWYBXVOXY2ELGJKFRX6VGGPRYUWHQ7PMXXJNDZFMKD")
bob_address = "GA7YNBW5CBTJZ3ZZOWX3ZNBKD6OE7A7IHUQVWMY62W2ZBG2SGZVOOPVH"
server = Server("https://horizon-testnet.stellar.org")
alice_account = server.load_account(alice_keypair.public_key)
base_fee = server.fetch_base_fee()
transaction = (
TransactionBuilder(
source_account=alice_account,
network_passphrase=Network.TESTNET_NETWORK_PASSPHRASE,
base_fee=base_fee,
)
.add_text_memo("Hello, Stellar!")
.append_payment_op(bob_address, "10.25", "XLM")
.build()
)
transaction.sign(alice_keypair)
response = server.submit_transaction(transaction)
print(response)- Building transaction with asynchronous server
# Alice pay 10.25 XLM to Bob
import asyncio
from stellar_sdk import Server, Keypair, TransactionBuilder, Network
from stellar_sdk.client.aiohttp_client import AiohttpClient
alice_keypair = Keypair.from_secret("SBFZCHU5645DOKRWYBXVOXY2ELGJKFRX6VGGPRYUWHQ7PMXXJNDZFMKD")
bob_address = "GA7YNBW5CBTJZ3ZZOWX3ZNBKD6OE7A7IHUQVWMY62W2ZBG2SGZVOOPVH"
async def payment():
async with Server(
horizon_url="https://horizon-testnet.stellar.org", client=AiohttpClient()
) as server:
alice_account = await server.load_account(alice_keypair.public_key)
base_fee = await server.fetch_base_fee()
transaction = (
TransactionBuilder(
source_account=alice_account,
network_passphrase=Network.TESTNET_NETWORK_PASSPHRASE,
base_fee=base_fee,
)
.add_text_memo("Hello, Stellar!")
.append_payment_op(bob_address, "10.25", "XLM")
.build()
)
transaction.sign(alice_keypair)
response = await server.submit_transaction(transaction)
print(response)
if __name__ == "__main__":
asyncio.run(payment())- Document: https://stellar-sdk.readthedocs.io
- Code: https://github.com/StellarCN/py-stellar-base
- Examples: https://github.com/StellarCN/py-stellar-base/tree/dev/examples
- Issue tracker: https://github.com/StellarCN/py-stellar-base/issues
- License: Apache License 2.0
- Releases: https://pypi.org/project/stellar-sdk/
Thank you to all the people who have already contributed to py-stellar-sdk!