specifically i'm getting this error

requests.exceptions.SSLError: HTTPSConnectionPool(host='<http://opensky-network.org|opensky-network.org>', port=443): Max retries exceeded with url: /api/states/all?lamin=37.15294209056667&lamax=40.75094679823332&lomin=-79.76136868215879&lomax=-75.13474242904122 (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1129)')))

Hey @peter zhao, I assume you’re trying to register a lot with a server backend?

i'm just running the tutorial example - 01_etl.py I'm still finding my way around prefect. Here's what I have run so far.

prefect backend server
prefect server start
prefect agent local start

Is it this code snippet you’re trying?

import aircraftlib as aclib

dulles_airport_position = aclib.Position(lat=38.9519444444, long=-77.4480555556)
area_surrounding_dulles = aclib.bounding_box(dulles_airport_position, radius_km=200)

# Extract: fetch data from multiple data sources
ref_data = aclib.fetch_reference_data()
raw_aircraft_data = aclib.fetch_live_aircraft_data(area=area_surrounding_dulles)

# Transform: clean the fetched data and add derivative data to aid in the analysis
live_aircraft_data = []
for raw_vector in raw_aircraft_data:
    vector = aclib.clean_vector(raw_vector)
    if vector:
        aclib.add_airline_info(vector, ref_data.airlines)
        live_aircraft_data.append(vector)

# Load: save the data for future analysis
db = aclib.Database()
db.add_live_aircraft_data(live_aircraft_data)
db.update_reference_data(ref_data)

yep

Ohhh it looks like the aircraftlib API may just have been down for a bit. I just tried it and it ran. Could you try again?

Saddly, it still doesnt work. This was run on mac machine On a separate mac machine, it works fine

Is that on the same network?

different network

It seems you computer just can’t make the request Can you try doing this maybe? https://stackoverflow.com/a/59411597

python was installed via conda I tried looking for 'install certificates.command' but none to be found

What python version are you on and how about the computer where it worked?

3.9 on both machines

Prefect doesnt officially support 3.9 anyway, so maybe it’s worth trying to downgrade

yes it did work!

Perfect!