Hi @r.fernandez,

We advise coding defensively in these instances. I manufactured an error in the code below to exemplify what I mean:

import refinitiv.data as rd
from refinitiv.data.content import fundamental_and_reference

rd.open_session()

request = fundamental_and_reference.Definition(
    universe=['LSEG.L'],
    fields=['ASK'])

try:
    response = request.get_data()
except Exception as e:
    print(e.__dict__)

try:
    response = request.get_data()
except Exception as e:
    if e.__dict__['code'] == -1:
        print("The Error Is -1")

As you can see, you can use a try and if loop to come to a similar functionality to what you asked. Please let me know if this makes sense.

@jonathan.legrand

Did you receive the message yesterday on the error code 401 and the script? Have you been able to replicate the error code after running it for some ten minutes?

@jonathan.legrand

I've answered your thread last week, but have not received a reaction. Could you please take a look at it? My note:

The error I receive is: "Error code 401 | token expired"

I've replicated the full code below, based on your example. I've ran the code in 3 command windows in parallel to replicate the production environment. After 1975 calls, 4 minute 20 seconds, I receive this Exception and the code freezes.

Note: Your code you check 401 in the http response, but in practice 401 raises an error and thus must be caught using try/catch.

See code:

import refinitiv.data as rd
import time
from datetime import datetime 
import random

rd.open_session()
start = datetime.now()

def get_fundamental_and_reference_data(
        universe,
        fields,
        max_attempts=4,
        parameters=None,
        row_headers=None,
        use_field_names_in_headers=None,
        extended_params=None,
        ncalls = 0
        ):

    for i in range(max_attempts):
        
        try:
            response = rd.content.fundamental_and_reference.Definition(
            universe=universe,
            fields=fields,
            parameters=parameters,
            row_headers=row_headers,
            use_field_names_in_headers=use_field_names_in_headers,
            extended_params=extended_params).get_data()
            return response._http_status['http_status_code']
        except Exception as e:
            error = str(e).split('Requested')[0]
            
            # check if 401 error, if so restart and fully exit script
            if 'code 401' in error or 'token expired ' in error:
                print(f'\n\n-> Error 401: {error}')
                print(e)
                print('Script started at: ', start)
                print('Current time: ', datetime.now())
                print('Number of calls done: ', ncalls)
                
                time.sleep(1)
                print(f'{datetime.now()} -- closing session')
                rd.close_session()
                print(f'{datetime.now()} -- session closed')
                time.sleep(2.5)
                print(f'{datetime.now()} -- opening new session')
                rd.open_session()
                print(f'{datetime.now()} -- session opened')
                time.sleep(1)
                print(f'{datetime.now()} -- continuing')
            
            return e

ncalls = 0
while True:
    ncalls += 1
    http=get_fundamental_and_reference_data(universe="VOD.L", fields="TR.ClosePrice", ncalls=ncalls)
    print(f'    - call {ncalls} -- http: {http}', end='\r')
    
    #  to ensure no 429 data limiting calls
    time.sleep(random.uniform(0, 0.5))

FYI, reran the code on Monday 3 June. Performed the code in 2 command windows, and first window received 401 error after just 64 calls. See screenshot:

Running on Mac OSX, latest version of osx, python 3.9 and pip version.