How to encode log file?

Question

My code:

logging.warning('FASE VALIDACIÓN TITULOS DE COLUMNAS DE DATOS NO SUPERADA. compruebe los nombres de los títulos de las columnas en datos.csv)')

Output in .log file:

WARNING:root:FASE VALIDACI�N TITULOS DE COLUMNAS DE DATOS NO SUPERADA. compruebe los nombres de los t�tulos de las columnas en datos.csv)

Then I tried this:

logging.basicConfig(filename=nombreFicheroLog, encoding="utf-8", level=logging.DEBUG)

But it does not work. Then I tried this one:

logging.warning(u'FASE VALIDACIÓN TITULOS DE COLUMNAS DE DATOS NO SUPERADA. compruebe los nombres de los títulos de las columnas en datos.csv)')

But the output is the same.

How I can encode the .log file to support UTF-8?

P.S. I'm using Python3.

Adding a u to a string in Python 3 doesn't do anything. Strings are unicode per default in Python 3 anyway. — Alfe
– Alfe, Commented Jan 28, 2014 at 10:13
How do you look at the output .log file when you see your strange � character? Have you looked at it in a hex dump of that .log file? (Maybe it's just the log file viewer who is not displaying the utf 8 correctly.) — Alfe
– Alfe, Commented Jan 28, 2014 at 10:15
@Alfe, I'm looking at the output file with Pycharm IDE: Settings: File Encodings -> IDE Encoding -> 'UTF-8', 'Autodetect UTF' is checked; Proyect Encoding -> <System Default> — Trimax
– Trimax, Commented Jan 28, 2014 at 10:23

Community · Accepted Answer · 2017-05-23 10:29:37Z

24

basicConfig does not take an encoding argument, but in Python 3.3 you can do this instead:

logging.basicConfig(handlers=[logging.FileHandler(nombreFicheroLog, 'w', 'utf-8')], 
                    level=logging.DEBUG)

For older Pythons, see this question.

edited May 23, 2017 at 10:29

CommunityBot

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answered Jan 28, 2014 at 10:24

Janne Karila

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2 Comments

Trimax Over a year ago

Thank you @JanneKarila, that works fine. But now, I need to read how it works in Advanced Tutorial; I don't like to use things that I don't know how to use. ;-)

kv1dr Over a year ago

Thank you. I didn't know the FileHandler has to be in array. Here, have my ↑.

NiKi_ORNiS · Accepted Answer · 2022-10-15 21:03:32Z

0

Since Python3.9 you can set encoding in logging.basicConfig: https://docs.python.org/3.9/library/logging.html#logging.basicConfig

For previous versions you also can configure a stream with 'utf-8' encoding, without explicitly using handler:

logging.basicConfig(stream=open(nombreFicheroLog, 'w', encoding='utf-8', level=logging.DEBUG)

source: https://github.com/python/cpython/issues/81292 (https://bugs.python.org/issue37111)

edited Oct 15, 2022 at 21:03

answered Oct 15, 2022 at 20:54

NiKi_ORNiS

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