Not able to load logging details to log file in python

Question

In xyz file there will be having all .py files such as abcd.py efg.py etc which are to tested with logging.info instead print statements I have set the configuration for logging.info as follows in the code but messages are not loading into log file

for example

logging.info('hi')

'hi' is not been loading into the concerned log file

import logging.config

config={

    'version': 1,
    'formatters': {'default': {
        'format': '[%(asctime)s] %(levelname)s in %(module)s: %(message)s',
    }},
    'handlers': {'wsgi': {
        'class': 'logging.StreamHandler',
        'stream': 'ext://flask.logging.wsgi_errors_stream',
        'formatter': 'default'
    },
    'fileHandler':{
        'class':'logging.handler.RotatingFileHandler',
        'formatter':'default',
        'filename':'log_info.log'
        'maxBytes':512000,
        'backupCount':5
    }},
    'root': {
        'level': 'INFO',
        'handlers': ['wsgi']
    },
    'xyz':{
        'handler':['fileHandler'],
        'level':['info']
}}


logging.config.dictConfig(config)

log=logging.getLogger('root')

With respect, the grammar is very difficult to follow. Please consider revising the question to 1) add *clarity* to what is being asked, and 2) *ask* a specific question. Thank you. — S3DEV, Jun 30 '22 at 12:39

score 0 · Answer 1 · answered Jun 30 '22 at 12:55

There was a quite a few small typos in your config that caused the missing logs, but annoyingly didn't raise any errors

Rotating file handler is located in logging.handlers.RotatingFileHandler, notice the included "s" in "handlers"
Missing comma after "filename" key
Loggers have to be listed under their own nesting
Missing "s" in "handlers" key under logger configuration

Here's a sample in ended up with, I removed the flask part because I didn't have it installed

import logging
import logging.config

config={
    'version': 1,
    'formatters': {
        'default': {
            'format': '[%(asctime)s] %(levelname)s in %(module)s: %(message)s'
        }
    },
    'handlers': {
        'fileHandler': {
            'class':'logging.handlers.RotatingFileHandler',
            'formatter':'default',
            'filename':'log_info.log',
            'maxBytes': 512000,
            'backupCount':5,
            "level": "INFO"
        }
    },
    "loggers": {
        'xyz':{
            'handlers':['fileHandler'],
            'level': "INFO"
        }
    }
}

logging.config.dictConfig(config)

logger=logging.getLogger('xyz')
logger.info("moro")

Then in handler wsgi configuration is missing and there is no wsgi handler — dummy, Jun 30 '22 at 13:11
@dummy Just add what you had originally to the template I posted and it should work. If you have some problem with it, you should open a new question — Tzane, Jul 01 '22 at 07:24

Not able to load logging details to log file in python

1 Answers1