def set_default_account_by_index(self, index: int):
        """
        This interface is used to set default account by given index.

        :param index: an int value that indicate the account object in account list.
        """
        if index >= len(self.accounts):
            raise SDKException(ErrorCode.param_error)
        for acct in self.accounts:
            acct.is_default = False
        self.accounts[index].is_default = True
        self.default_account_address = self.accounts[index].b58_address
def set_default_account_by_index ( self , index : int ) : if index >= len ( self . accounts ) : raise SDKException ( ErrorCode . param_error ) for acct in self . accounts : acct . is_default = False self . accounts [ index ] . is_default = True self . default_account_address = self . accounts [ index ] . b58_address
This interface is used to set default account by given index.

        :param index: an int value that indicate the account object in account list.