Progress and logging django command

test_command.py

from django.core.management.base import BaseCommand
from tqdm import trange
from random import random, randint
from time import sleep

import logging
logger = logging.getLogger('commands') # or __name__ 

class Command(BaseCommand):
    """
    Primero instalar libreria de progress bar con `pip install tqdm`
    Configurar en settings LOGGING['commands']
    Este comando usa el verbosity para setear el nivel de logueo.

    ./manage.py text_command -v 2
    """
    LEVELS = {
        0: logging.ERROR,
        1: logging.WARN,
        2: logging.INFO,
        3: logging.DEBUG
    }

    help = 'Test logging tools'

    def handle(self, *args, **options):
        logger.setLevel(self.LEVELS[options['verbosity']])
        logger.info('Starting command %s ', __name__)

        t = trange(40)
        for i in t:
            try:
                if i % 20 == 0:
                    raise('Error grave')
                # Texto a la izq de la barra de progreso
                t.set_description('%d' % i)

                # Texto a la der de la barra de progreso
                # Los parametros pueden ser cualquier cosa.
                t.set_postfix(loss=random(), gen=randint(1, 999), str='h', lst=[1, 2])
                logger.debug('Process %i', i)
            except:
                logger.exception('Ups! Fake Exception.')

            sleep(0.1)
        logger.info('End command')