cosmospy 3.0.0

Tools for Cosmos wallet management and offline transaction signing

cosmospy

Version 3.0.0

Tools for Cosmos wallet management and offline transaction signing

Requirements

apt-get install libsecp256k1-dev

Installing

Installing from PyPI repository (https://pypi.org/project/cosmospy):

pip install cosmospy

Usage

Generating a wallet

from cosmospy.addresses import generate_wallet
wallet = generate_wallet()

The value assigned to wallet will be a dictionary just like:

{
    'private_key': '6dcd05d7ac71e09d3cf7da666709ebd59362486ff9e99db0e8bc663570515afa',
    'public_key': '03e8005aad74da5a053602f86e3151d4f3214937863a11299c960c28d3609c4775',
    'address': 'cosmos1jkc7hv9j92gj7r6sqq0l630lv4kqyac7t2dj2t'
}

Signing transactions

from cosmospy.transactions import Transaction
tx = Transaction(
    privkey="26d167d549a4b2b66f766b0d3f2bdbe1cd92708818c338ff453abde316a2bd59",
    account_num=11335,
    sequence=0,
    fee=1000,
    gas=37000,
    memo="",
    chain_id="cosmoshub-3",
    sync_mode="sync",
)
tx.add_transfer(recipient="cosmos103l758ps7403sd9c0y8j6hrfw4xyl70j4mmwkf", amount=387000)
pushable_tx = tx.get_pushable_tx()

The value assigned to pushable_tx will be a signed transaction in the form of a JSON string. The string can be used as request body when calling the POST /txs endpoint of the Cosmos REST API.

Contributing

1. Fork/clone the repository.

2. Install dependencies (you'll probably want to create a virtual environment, using your preferred method, first).

   pip install -r requirements.txt
   

3. Install pre-commit hooks

   pre-commit install
   

4. After making changes and having written tests, make sure tests pass:

   pytest
   

5. Commit, push, and make a PR.