pywalib.py 文件源码

def get_balance(address):
        """
        Retrieves the balance from etherscan.io.
        The balance is returned in ETH rounded to the second decimal.
        """
        address = PyWalib.address_hex(address)
        url = 'https://api.etherscan.io/api'
        url += '?module=account&action=balance'
        url += '&address=%s' % address
        url += '&tag=latest'
        if ETHERSCAN_API_KEY:
            '&apikey=%' % ETHERSCAN_API_KEY
        # TODO: handle 504 timeout, 403 and other errors from etherscan
        response = requests.get(url)
        response_json = response.json()
        PyWalib.handle_etherscan_error(response_json)
        balance_wei = int(response_json["result"])
        balance_eth = balance_wei / float(pow(10, 18))
        balance_eth = round(balance_eth, ROUND_DIGITS)
        return balance_eth