Stellar Python SDK

py-stellar-base is a Python library for communicating with a Stellar Horizon server and Stellar RPC server. It is used for building Stellar apps on Python. It supports Python 3.9+ as well as PyPy 3.9+.

It provides:

• a networking layer API for Horizon endpoints.
• a networking layer API for Stellar RPC server methods.
• facilities for building and signing transactions, for communicating with a Stellar Horizon and Stellar RPC instance, and for submitting transactions or querying network history.

Documentation

py-stellar-base's documentation can be found at https://stellar-sdk.readthedocs.io.

Installing

pip install --upgrade stellar-sdk

If you need to use asynchronous, please use the following command to install the required dependencies.

pip install --upgrade stellar-sdk[aiohttp]

If you need to Shamir backup support, please use the following command to install the required dependencies.

pip install --upgrade stellar-sdk[shamir]

We follow Semantic Versioning 2.0.0, and I strongly recommend that you specify its major version number in the dependency file to avoid the unknown effects of breaking changes.

A Simple Example

You can find more examples here.

# Alice pay 10.25 XLM to Bob
from stellar_sdk import Asset, 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 = 100
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, Asset.native(), "10.25")
    .set_timeout(30)
    .build()
)
transaction.sign(alice_keypair)
response = server.submit_transaction(transaction)
print(response)

stellar-contract-bindings

stellar-contract-bindings allows you to generate Python bindings for Stellar Soroban smart contracts, it makes calling Stellar Soroban contracts easier. click here for more information.

stellar-model

stellar-model allows you to parse the JSON returned by Stellar Horizon into the Python models, click here for more information.

Contributing

Contributions are welcome! See CONTRIBUTING.md for more details.

Links

• Document: https://stellar-sdk.readthedocs.io
• Code: https://github.com/StellarCN/py-stellar-base
• Examples: https://github.com/StellarCN/py-stellar-base/tree/main/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-base!