Get simconnect exception when using code outside of example script

[Slipperyseaweed]

I have created a class which uses pysimconnect. This class works as intended when I use it locally with if name == "main", but when i import the class from another module I get the following warning: "WARNING:root:sc.receiveNext: exception 3, sendID 2, index 4294967295"

I also get the same warning when I copy and paste the class inside my main code and run it.

[Slipperyseaweed]

Here is example code.

`from simconnect import SimConnect, PERIOD_VISUAL_FRAME

class Simdata():

def __init__(self):
    self.sc = SimConnect(default_receivers=[])
    self.sim_data = None
    self.latest = 0
    self.simvars = [
            # Provide a dictionary to specify optional attributes:
            # 'units' (per SDK), 'epsilon' (default 1e-4) and 'type' (default DATATYPE_FLOAT64)
            dict(name="Airspeed indicated", units="knots"),
            dict(name="Indicated Altitude", units="feet"),
            dict(name="KOHLSMAN SETTING MB:1", units="millibars"),
            dict(name="ATTITUDE INDICATOR BANK DEGREES", units='degrees'),
            dict(name="ATTITUDE INDICATOR PITCH DEGREES", units='degrees'),
        ]
    self.dd = self.sc.subscribe_simdata(self.simvars, period=PERIOD_VISUAL_FRAME, interval=10)

def fetch_data(self):
    #TODO: add timeout incase we do not receive something to avoid infinite loop
    while True:
        self.sc.receive()

        n = len(self.dd.simdata.changedsince(self.latest))
        if n:
            return self.dd.simdata

def update_data(self):
    print("trying to update data")    
    self.sim_data = self.fetch_data()

def return_data(self, requested_data):
    return self.sim_data[requested_data]

test = Simdata()

if name == "main": test = Simdata() test.update_data() print(test.sim_data) for var in test.sc._receivers: print(vars(var))`

[patricksurry]

that's strange; my guess would be somehow the class is being instantiated twice somehow. in your code above you have test=Simdata() before (and after) the if __name__ ... which probably wouldn't work. can you try adding a simple print statemement inside your init function to make sure it's only getting called once when you're importing as a module?

[Slipperyseaweed]

Thanks for replying. It was calIed only once. I tried removing the class entirely, and still I get the error. I then copied the modified code without a class directly into my main pygame file and still I got the error. Perhaps it somehow does not play well with the pygame module somehow? I will try to investigate further.