Ethereum Python Library Issues with Binance Account Login
As a developer, it’s always frustrating when your favorite libraries don’t work as expected. We recently discovered an issue with the get_account() function in Binance’s etherscan.io library that causes errors when trying to connect to the exchange.
Problem:
When you use the get_account() function in the etherscan.io library, you’re trying to retrieve a user account object. However, this object is a coroutine, which means it has internal state that hasn’t been initialized yet when you call it. This results in the following errors:
TypeError: ‘coroutine’ object is not orderable': The lineinfo[‘balances’]’ is trying to access the balances property of the coroutine, which doesn’t make sense.
RuntimeWarning: coroutine ‘get_account’ is used before it is defined.
Solutions:
You can solve this problem by doing one of the following:
Approach 1: Use the login() function from the etherscan.io library
The "etherscan.io" library provides an easier way to connect to the exchange without having to worry about coroutines.
etherscan import get_account from get_account
def login_to_binance():
user = await get_account('0xYourUserName')
return user
Use:user = login_to_binance()
Approach 2: Use the non-coroutine implementation of "get_account()".
If you must use the get_account() function from the etherscan.io library, you can create a non-cryptographic implementation that returns an object instead of a coroutine.
etherscan import get_account
BinanceAccount class:
def __init__(self, user_id):
self.user = get_account(user_id)
def login_to_binance():
account = BinanceAccount('0xYourUsername')
return account.user
Use:account = login_to_binance()
Approach 3: Use a third-party library with a non-coroutine implementation
If you are still stuck, consider using a third-party library such as py-scan that has a non-cryptographic implementation of the get_account() function.
import py_scanner
def login_to_binance():
user = py_scanner.get_user('0xYourUserName')
return user
Usage:user = login_to_binance()
Conclusion:
In summary, using Binance's etherscan.io library's get_account() function can be cumbersome due to its coroutine nature. By following these approaches or using a third-party library with a non-cryptographic implementation, you should be able to resolve this issue and continue developing your Ethereum applications.
Confirmation message:
"Added Binance account login solution with login_to_binance()" function
API documentation:
- get_account(user_id)
: Retrieves an account object from the Ethereum network.
- login_to_binance()
: Logs in to the Binance exchange and returns a user object.
- BinanceAccount(…)`: A non-cryptographic implementation of the get_account() function that returns an object instead of a coroutine.
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