Issue with return statement inside except of for

19 New Member

I have this code inside a function:

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 try:

        for linea in subprocess.Popen(comando, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True).stdout:

                req = urllib2.Request(URL, "&mac_addr=" + mac_addr + " &sampled_time=" + sampled_time + " &line_data=" + linea)

                ret = urllib2.urlopen(req).read()

except (urllib2.URLError, httplib.HTTPException):

        logger.error('Error de comunicación con el servidor remoto')

        return

else:

        logger.info('Datos enviados correctamente')

My problem is that this function is called once per minute, BUT if an error occurs the logger logs several "Error...", in consecutives times, less than a second.

Expand|Select|Wrap|Line Numbers

 2007-10-16 19:40:04,237 Demonio DEBUG    Programa iniciado

2007-10-16 19:40:04,424 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:05,681 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:06,719 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:07,751 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:08,933 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:12,573 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:13,605 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:15,713 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:17,526 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:18,608 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:19,831 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:24,892 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:27,172 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:30,581 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:31,643 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:32,788 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:34,201 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:35,663 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:36,698 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:37,739 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:38,773 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:39,834 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:42,007 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:43,063 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:44,099 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:45,153 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:46,444 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:49,240 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:50,310 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:51,352 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:52,393 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:53,443 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:54,492 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:55,649 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:56,714 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:57,766 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:58,803 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:40:59,853 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:00,906 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:02,049 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:03,404 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:07,259 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:08,353 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:09,393 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:10,426 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:11,460 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:41:13,056 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:45:02,167 Demonio INFO     Datos enviados correctamente

2007-10-16 19:48:05,953 Demonio INFO     Datos enviados correctamente

2007-10-16 19:50:48,014 Demonio INFO     Datos enviados correctamente

2007-10-16 19:51:57,637 Demonio ERROR    Error de comunicación con el servidor remoto

2007-10-16 19:52:30,410 Demonio INFO     Datos enviados correctamente

2007-10-16 19:53:12,558 Demonio INFO     Datos enviados correctamente

2007-10-16 19:54:09,003 Demonio INFO     Datos enviados correctamente

2007-10-16 19:54:53,073 Demonio INFO     Datos enviados correctamente

2007-10-16 19:55:41,263 Demonio INFO     Datos enviados correctamente

My "expected behavior" is that log "Error... " only once, and with the "return" statemente jumps back to the main program.

What's going wrong? :/

(sorry about my poor english)

Oct 17 '07 #1

Subscribe Reply

1140

bartonc

6,596

Recognized Expert Expert

It is possible that the "once per minute" delay is built into this function, not the calling function.

Please post the entire function so the we may see what is being skipped by return.

Oct 17 '07 #2

diegososa

New Member

It is possible that the "once per minute" delay is built into this function, not the calling function.

Please post the entire function so the we may see what is being skipped by return.

Here is the entire .py file, isn't so long so i decided to post it complete. Hope you can help me, thanks in advance :)
(also hope that the "spanish locale" wasn't a problem to debug :) )

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 # -*- coding: cp1252 -*-

import sys, urllib, urllib2, commands, os, datetime, ConfigParser, signal

import string, time, logging, logging.handlers, subprocess

import httplib, inspect
 
def signal_hand(signum, singhand):

        logger.debug('Ejecución terminada por el sistema. SIGNAL:' + str(signum))

        exit()
 
def getMacAddress():

        if sys.platform.lower().startswith('win'):

                for line in subprocess.Popen("ipconfig /all", stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True).stdout:

                        if line.lstrip().startswith("Dirección física"):

                                mac = line.split(':')[1].strip().replace('-',':')

                                break

        if sys.platform.lower().startswith('lin'):

                for line in subprocess.Popen("ifconfig", stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True).stdout:

                        if line.find('Ether') > -1:

                                mac = line.split()[4]

                                break

        return mac
 
def principito(URL):

        sampled_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
 
        print "Enviando diagnóstico de red a " + URL

        print "Desde MAC " , mac_addr , "a la fecha/hora " + sampled_time
 
        try:

                for linea in subprocess.Popen(comando, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True).stdout:

                        req = urllib2.Request(URL, "&mac_addr=" + mac_addr + " &sampled_time=" + sampled_time + " &line_data=" + linea)

                        ret = urllib2.urlopen(req).read()

        except (urllib2.URLError, httplib.HTTPException):

                logger.error('Error de comunicación con el servidor remoto')

                print 'Error de comunicación con el servidor remoto.\n'

                return

        else:

                print 'Done.\n'

                logger.info('Datos enviados correctamente')
 
# -------- ************** --------

# -------- HILO PRINCIPAL --------

# -------- ************** --------
 
times_sent = 1

conf_path = sys.path[0]

conf_name = 'config.ini'
 
# Seteo el Logger para que no muestre nada en consola, y registre todos los eventos en el disco

handler_console = logging.StreamHandler()

handler_console.setLevel(60)

root_logger = logging.getLogger('')

root_logger.setLevel(logging.NOTSET)

root_logger.addHandler(handler_console)
 
try:

        config = ConfigParser.ConfigParser()

        config.read( os.path.join(conf_path, conf_name))
 
        # Inicializo el logger, y lo guardo en la misma carpeta que el programa y el archivo de configuracion

        logger = logging.getLogger('Demonio')

        hand_arch = logging.handlers.RotatingFileHandler(

                os.path.join(conf_path , config.get('logfile','name')),

                'a',

                1024 * config.getint('logfile','maxsize'),

                config.getint('logfile','backup'),)

        hand_arch.setLevel(logging.NOTSET)

        hand_arch.setFormatter(logging.Formatter('%(asctime)s %(name)s %(levelname)-8s %(message)s'))

        logger.addHandler(hand_arch)

except Exception:

        print 'Error en el archivo de configuracion'

        print sys.exc_info()[0].__module__ + ' -> ' + str(sys.exc_info()[1])

        print sys.exc_info()[0].__doc__

        exit()
 
# Comienzo a loguear

logger.debug('Programa iniciado')
 
# Guardo la MAC en el archivo config para no ejecutarlo constantemente

if not config.has_section("xo info"):

        config.add_section("xo info")
 
try:

        comando = config.get("xo info", "comando")

except:

        print 'Error en el archivo de configuracion'

        print sys.exc_info()[0].__module__ + ' -> ' + str(sys.exc_info()[1])

        print sys.exc_info()[0].__doc__

        exit()
 
if config.has_option("xo info", "mac"):

        mac_addr = config.get("xo info", "mac")

else:

        try:

                mac_addr = getMacAddress()

        except:

                print 'No se pudo determinar la MAC, se cancela la ejecución'

                logger.critical('No se pudo determinar la MAC, se cancela la ejecución')

                exit()

        else:

                config.set("xo info","mac", mac_addr)
 
config.write( file( os.path.join(conf_path, conf_name) ,'w') )
 
# Loguear las terminaciones desde el sistema (term, hup)

# El TRY es necesario para que funque en Windows nomás.

try:

        signal.signal(signal.SIGTERM, signal_hand)

        signal.signal(signal.SIGHUP, signal_hand)

except:

        pass
 
send_time = config.getfloat("host", "send_time")

URL = config.get("host", "addr")
 
# Bucle principal
 
try:

        while True: 

                print "__ Ejecucion N " , times_sent, " de el 'Demonio Posteador'__"

                principito(URL)

                times_sent += 1

                time.sleep(send_time)

except KeyboardInterrupt:

        print "\n< ... --- ... >"

        print "Ejecucion terminada por el usuario. :( \nEsperamos que no se hayan perdido datos! Good bye!"

        print "..............."

        logger.warning('Ejecución terminada por el usuario')

        exit()

except SystemExit:

        exit()

except:

        print "\n........................."

        print "Error inesperado en tiempo de ejecucion"

        print "Se ha logueado la informacion de error. Intentando retomar ejecución"

        print ".........................\n"

        logger.critical(sys.exc_info()[0].__module__ + ' -> ' + str(sys.exc_info()[1]))

Oct 17 '07 #3

bartonc

6,596

Recognized Expert Expert

It looks like

Expand|Select|Wrap|Line Numbers

 #

                time.sleep(send_time)

is set to once per second, not minute. You may want to try

Expand|Select|Wrap|Line Numbers

 #

#

                time.sleep(send_time * 60)

Oct 17 '07 #4

diegososa

New Member

Yes... that's it. OMG, I feel so silly right now, what a dumb mistake !!

Thanks a lot!

Oct 18 '07 #5

bartonc

6,596

Recognized Expert Expert

Yes... that's it. OMG, I feel so silly right now, what a dumb mistake !!

Thanks a lot!

Which makes me feel pretty sharp-eyed (and almost multi-lingual).

Oct 18 '07 #6

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