Error when attempting to Initialize driver

[Diddleydope]

This is my driver code:

class NanonisSPM(Instrument):
    #log = logging.getLogger(__name__)

    def __init__(self, name: str, adress: str, port: int, **kwargs):
        super().__init__(name, **kwargs)

        self._adress = adress
        self._port = port

        self.model = "SPM"
        self.serial = 1234
        self.firmware = 1

        self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self._socket.connect((self._address, self._port))

        self.n = nanonis_spm_specs.Nanonis(self._socket)
        self.n.Bias_Set(np.float32(1.4))

        self.add_parameter(
            "bias",
            set_cmd=self._bias_set,
            val_mapping=create_on_off_val_mapping(on_val=1, off_val=0),
            instrument=self,
            get_parser=float
        )

    def get_idn(self):
        return {"vendor": "SpecsZurich", "model": self.model,
                "firmware": self.firmware, "serial": self.serial}

    def _bias_set(self, bias: np.float32):
        self.n.Bias_Set(bias)

and here i'm trying to create an instance of said class:

from Specs_SPM import NanonisSPM


testInstance = NanonisSPM('NanonisSPM', '10.0.0.37', 6501) #QCODES DRIVER INSTANCE

This however, does not seem to work. When I run this code, I get the following error:

"KeyError: 'Duplicate parameter name IDN on instrument <NanonisSPM: NanonisSPM>"

Could anyone explain this behavior?

UPDATE:

I merely reinstalled qcodes as a dependency and removed some of the arguments from the parameter and now it seems to work...

class NanonisSPM(Instrument):
    #log = logging.getLogger(__name__)

    def __init__(self, name: str, address: str, port: int, **kwargs):
        super().__init__(name, **kwargs)

        self._address = address
        self._port = port

        #self.model = "SPM"
        #self.serial = 1234
        #self.firmware = 1

        self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self._socket.connect((self._address, self._port))

        self.n = nanonis_spm_specs.Nanonis(self._socket)
        #self.n.Bias_Set(np.float32(1.2))

        self.add_parameter(
            "bias",
            set_cmd=self._bias_set,
        )

    def get_idn(self) -> dict[str, Optional[str]]:
        vendor = 'Ithaco (DL Instruments)'
        model = '1211'
        serial = None
        firmware = None
        return {'vendor': vendor, 'model': model,
                'serial': serial, 'firmware': firmware}

    def _bias_set(self, bias: np.float32):
        self.n.Bias_Set(bias)

Here I call it:

from Specs_SPM import NanonisSPM
import numpy as np


testInstance = NanonisSPM('NanonisSPM', '10.0.0.37', 6501) #QCODES DRIVER INSTANCE
#testInstance.BiasSet(np.float32(4.7))
testInstance.bias(np.float32(1.9))

[jenshnielsen]

Glad that you were able to solve it. It does sound like something was initially calling the init of the instrument twice but I am not sure what

(I edited your post slightly to make the formatting a bit easier to read. If you use ``` before and after your code it will be shown as such)