list of lists iterate only sends the last value

[batchenr]

Hey, im new to python.

Im using python3 with raspberrypi3 and GPIO. i have this code which supposed to iterate on list of lists :

#json file goes to python as s.settings

    "gpio": [
    {
        "pin":21,
        "type": "input",
        "services": ["gps_mon"],
        "status": false
    },
    {
        "pin": 27,
        "type": "input",
        "services": ["ntp_mon"],
        "status": false
    }]

And this is the code :

 serviceCallbackList = s.settings["watchdog"]["services"] #gets all watchdog services

    def button_callback(flagInPin):
        s.print_info("Button was pushed from pin", flagInPin)
        for item in serviceCallbackList:   # checks if the services i set in the GPIO list is 
            if item in flagInService:      # in the watchdog services and delete the key if so.
                del serviceCallbackList[flagInService]

    for n in s.setting["gpio"]:
        try:
            if n["type"] == "input":
                flagInPin = n["pin"]
                flagInService = n["services"]
                GPIO.setup(flagInPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
                GPIO.add_event_detect(flagInPin, GPIO.RISING, callback=button_callback)
        except Exception as e:
            print("No Input settings", e)

My problem is that "GPIO.add_event_detect" has to send to button_callback() function the
flagInPin value ( which works) but i need it to have the flagInService to. because it will send me the last value which not match the pin that was activated, only the last value the loop went through, and i cannot send GPIO.add_event_detect with another value.

Any ideas?
I just want function to know that flagInPin has to match with flagInService that it comes from the same list.

Thanks.

[Gribouillis]

If I understand it correctly, you need to pass the flagInService variable to the callback. It seems to me that you can do it by using the 'partial' operation

from functools import partial
def button_callback(flagInService, flagInPin):
    ...

then

...
    GPIO.add_event_detect(flagInPin, GPIO.RISING, callback=partial(button_callback, flagInService))

Another issue is that in button_callback(), you're deleting items from serviceCallbackList while iterating on this list. It doesn't work in python. You could avoid this by writing

for item in list(serviceCallbackList): # make a copy
    ...

also shouldn't it be del serviceCallbackList[item] ?