Hacktoberfest 2026: le issue che i maintainer hanno segnato per ottobre, aperte e adatte ai principianti. Sfoglia le issue Hacktoberfest

[Bug] Can't flush stdout at shutdown

Aperta
  • Qualcosa non va?
#1,505 2 commenti 0 reazioni 1 assegnatario Vedi su GitHub

@gavin-aguiar ci sta già lavorando.

Dal 2/7/2024.

Valutazione

Questa issue non è ancora stata valutata.

Descrizione

area:python-functions bug python
Expected Behavior

Hello everyone, I have some azure functions that were working for long time and now they stopped, also locally they work fine, so I tried to investigate for the error, I think the error is due to the fact that I created an AzureLogHandler, that's supposed to log some informations to my Azure Log Analytics and the flush is not well supported. I see that your code is calling sys.stdout.flush() here but I guess that's not the right way, maybe it should be done calling logging.shutdown(), so that it doesn't fail.

Actual Behavior

The Azure function is running fine, but at the end I get this error: Result: Failure Exception: AttributeError: 'PrintLogger' object has no attribute 'flush' Stack: File "/azure-functions-host/workers/python/3.9/LINUX/X64/azure_functions_worker/dispatcher.py", line 643, in _handle__invocation_request sys.stdout.flush()
I'd like it to stop throwing this error.

Steps to Reproduce

No response

Relevant code being tried
from collections import namedtuple
import json
import os
import datetime
from laura.powerbi_pilot import PowerBIPilot
import logging
import azure.functions as func
from opencensus.ext.azure.log_exporter import AzureLogHandler


def get_powerbi_vars(workspace_id):
    powerbi_vars = namedtuple("powerbi_vars", [
        'appid',
        'password',
        'tenant_id',
        'workspace_id'
    ])

    t = [os.environ['PowerBiSPAppId'],
         os.environ['PowerBiSPSecretId'],
         os.environ['TenantId'],
         workspace_id
         ]

    powerbi_vars = powerbi_vars._make(t)
    return powerbi_vars


def main(logdatasetrefreshtimer: func.TimerRequest) -> None:
    utc_timestamp = datetime.datetime.utcnow().replace(
        tzinfo=datetime.timezone.utc).isoformat()

    if logdatasetrefreshtimer.past_due:
        logging.info('The timer is past due!')

    data_logger = logging.getLogger("data_logging")
    data_logger.setLevel(logging.INFO)

    logging.info('Fetching APPINSIGHTS key')
    app_insights_instr_key = os.environ["APPINSIGHTS_INSTRUMENTATIONKEY"]

    logging.info('Adding key to handler')
    data_logger.addHandler(AzureLogHandler(
        connection_string=f"InstrumentationKey={app_insights_instr_key}")
    )

    workspaces = list(os.environ["PowerBiWorkspaces"].split(","))

    for workspace in workspaces:
        logging.info(f"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Workspace: {workspace}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
        powerbi_pilot = PowerBIPilot(
            powerbi_vars=get_powerbi_vars(workspace_id=workspace))
        try:
            powerbi_pilot.get_token()
            datasets = (json.loads(powerbi_pilot.list_datasets_from_group(powerbi_pilot.workspace_id).content)['value'])
            #logging.info(datasets)
            for dataset in datasets:
                if dataset['name'] not in ["Report Usage Metrics Model","Usage Metrics Report"]:
                    logging.info(
                        f"~~~~~~~~~~~~~~ Refresh history dataset:  {dataset['id']}: {dataset['name']} ~~~~~~~~~~~~~~")
                    for refresh in (json.loads(powerbi_pilot.get_refresh_history(dataset['id']).content)['value']):
                        refresh['dataset'] = dataset['id']
                        refresh['workspace'] = workspace
                        data_logger.info(json.dumps(refresh))

        except Exception as e:
            logging.info(e)
Relevant log output
06/07/2024, 06:00:09.452
Error
Result: Failure Exception: AttributeError: 'PrintLogger' object has no attribute 'flush' Stack: File "/azure-functions-host/workers/python/3.9/LINUX/X64/azure_functions_worker/dispatcher.py", line 643, in _handle__invocation_request sys.stdout.flush()
06/07/2024, 06:00:09.452
Error
Executed 'Functions.PowerBiLogger' (Failed, Id=6799712d-8639-48e6-85c4-5a506d2a99ab, Duration=9449ms)
06/07/2024, 06:00:09.460
Error
Result: Failure Exception: AttributeError: 'PrintLogger' object has no attribute 'flush' Stack: File "/azure-functions-host/workers/python/3.9/LINUX/X64/azure_functions_worker/dispatcher.py", line 643, in _handle__invocation_request sys.stdout.flush()
requirements.txt file
azure-functions
requests
databricks-cli
opencensus-ext-azure
pandas
./domains/data_tamers/functions/shared/wheels/laura-0.22.0-py3-none-any.whl
Where are you facing this problem?

Production Environment (explain below)

Function app name

No response

Additional Information

No response

Lingua principale
Python
Stelle
357
Fork
117
Merge medio
13g 12h
PR unite (30g)
2

Preparare l'ambiente

Apri in Codespaces

Avvia il container di sviluppo del progetto nel browser, con il tuo account GitHub.

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Altre issue di Azure/azure-functions-python-worker

Tutte le issue di Azure/azure-functions-python-worker

Issue simili

Altre issue su Python

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.