Here’s an article on how to use Durable Nounce in Python for limit orders:

Durable Nounce and Connecting Wallets in Python: A Beginner’s Guide

As a developer working with blockchain platforms, you may have come across concepts like persistent noun and connect wallets. In this article, we’ll take a look at how to use the persistent noun library in Python and show its application in creating limit orders.

What is Durable Nounce?

Durable noun is an open-source JavaScript library that enables the creation of smart contracts on blockchain platforms such as Solana, Ethereum, and Binance Smart Chain. It allows developers to create decentralized applications (dApps) without having to worry about the complexities of writing Solidity or other programming languages.

Connecting Wallets in Python

To use persistent noun in Python, you need to connect a wallet to your blockchain platform. Here is an example using Solana and the solana-program library:

import if
from solana_program import account_key, program_account_info
def slim():





Generate a key pair for your Solana wallet
key = account_key.generate_keypair()
program_id = "your_solana_program_id"
pub_key = program_account_info.get_pubkey(program_id)

Create a persistent contract instance noun
contract_instance = persistent_nounce.create_contract(
program_account_info,
key.public_key,
pub_key,
"durable_nounce",
"your_durable_nounce_program_id",
{
"accounts": ["public_key"],
"parameters": {"nouncePubkey": "public_key"},
},
)
if __name__ == "__main__":
slim()

In this example, we generate a key pair for a Solana wallet and create a persistent instance of the noun contract using the create_contract method. Then we specify the public key to be used as the contract sender account.

Creating a Limit Order

Now that you have a durable noun contract, let’s create an example of a limit order:

import if
from solana_program import program_account_info
def slim():

Generate a key pair for your Solana wallet
key = account_key.generate_keypair()
program_id = "your_solana_program_id"
pub_key = program_account_info.get_pubkey(program_id)

Create a durable tender contract
contract_instance = persistent_nounce.create_contract(
program_account_info,
key.public_key,
pub_key,
"durable_nounce",
"your_durable_nounce_program_id",
{
"accounts": ["public_key"],
"parameters": {"nouncePubkey": "public_key"},
},
)

Create a limit order
program_account_info = persistent_nounce.create_program_account_info(
key.public_key,
pub_key,
"limit_order",
10000, 
maximum amount to sell in Solana units
{
"accounts": ["nouncePubkey"],
"parameters": {"buyPrice": "123.45", "amount": "10000"},
},
)

Send a limit order to a contract instance using a connect wallet
persistent_nounce.send_contract_account_info(
contract_instance,
program_account_info,
)

In this example, we create a persistent noun contract instance and send it limit order using the send_contract_account_info method. A limit order specifies the maximum amount to sell in Solana units at the current price.

Example Use Cases

Durable Nounce can be used in a variety of applications, such as:

• Building decentralized exchanges (DEX) with automated market making

• Building trustless liquidity pools on blockchain platforms

• Enabling smart contract trading and margin

Keep in mind that this is just a basic example to get you started.