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testing logging python

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crêpper answered on January 15, 2021 Popularity 10/10 Helpfulness 2/10

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testing logging python

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# can be done by using unittest's assertLogs

from unittest import TestCase

class MyTest(TestCase):
  
  def test_logs(self):
    with self.assertLogs('foo', level='INFO') as cm:
        logging.getLogger('foo').info('first message')
        logging.getLogger('foo.bar').error('second message')
        self.assertEqual(cm.output, ['INFO:foo:first message',
                                 'ERROR:foo.bar:second message'])

Popularity 10/10 Helpfulness 2/10 Language python

Source: docs.python.org

Tags: logging python testing

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Contributed on Jan 15 2021

crêpper

0 Answers Avg Quality 2/10

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python logging

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import logging
import sys

logger = logging.getLogger()
logger.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s | %(levelname)s | %(message)s', 
                              '%m-%d-%Y %H:%M:%S')

stdout_handler = logging.StreamHandler(sys.stdout)
stdout_handler.setLevel(logging.DEBUG)
stdout_handler.setFormatter(formatter)

file_handler = logging.FileHandler('logs.log')
file_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(formatter)

logger.addHandler(file_handler)
logger.addHandler(stdout_handler)

########### Simple way #############
import logging

logging.basicConfig(filename='test.log', format='%(filename)s: %(message)s',
                    level=logging.DEBUG)

logging.debug('This is a debug message')
logging.info('This is an info message')
logging.warning('This is a warning message')
logging.error('This is an error message')
logging.critical('This is a critical message')

Popularity 10/10 Helpfulness 5/10 Language python

Source: Grepper

Tags: python py

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Contributed on Feb 23 2024

Innocent Iguana

0 Answers Avg Quality 2/10

Python Logging

Comment

# importing module
import logging
 
# Create and configure logger
logging.basicConfig(filename="newfile.log",
                    format='%(asctime)s %(message)s',
                    filemode='w')
 
# Creating an object
logger = logging.getLogger()
 
# Setting the threshold of logger to DEBUG
logger.setLevel(logging.DEBUG)
 
# Test messages
logger.debug("Harmless debug Message")
logger.info("Just an information")
logger.warning("Its a Warning")
logger.error("Did you try to divide by zero")
logger.critical("Internet is down")

Popularity 10/10 Helpfulness 4/10 Language python

Source: www.geeksforgeeks.org

Tags: python py

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Contributed on Sep 17 2022

Vivacious Vulture

0 Answers Avg Quality 2/10

python logging handlers

Comment

import logging

formatter = "%(asctime)s : %(levelname)s : %(lineno)d : %(funcName)s : %(message)s"

stdout_handler = logging.StreamHandler(stream=sys.stdout)
file_handler = logging.FileHandler('logs/<log_filename>.log')
handlers = [stdout_handler, file_handler]

logging.basicConfig(
    level=logging.INFO,
    format=formatter,
    handlers=handlers
)

logger = logging.getLogger(__name__)

logger.info('this logging conf helps to print the logs to stdout and to log file')

Popularity 10/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: handlers handler

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Contributed on Feb 26 2023

sivakguru

0 Answers Avg Quality 2/10

python logging file

Comment

import logging

# Configure logging to output to a file
logging.basicConfig(filename='app.log', level=logging.DEBUG)

# Log messages
logging.debug('This is a debug message')
logging.info('This is an info message')
logging.warning('This is a warning message')
logging.error('This is an error message')
logging.critical('This is a critical message')

Popularity 9/10 Helpfulness 4/10 Language python

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

python logging

Comment

# Example usage:
# For now, this is how I like to set up logging in Python:

import logging

# instantiate the root (parent) logger object (this is what gets called
# to create log messages)
root_logger = logging.getLogger()
# remove the default StreamHandler which isn't formatted well
root_logger.handlers = []
# set the lowest-severity log message to be included by the root_logger (this
# doesn't need to be set for each of the handlers that are added to the
# root_logger later because handlers inherit the logging level of their parent
# if their level is left unspecified. The root logger uses WARNING by default)
root_logger.setLevel(logging.INFO)

# create the file_handler, which controls log messages which will be written
# to a log file (the default write mode is append)
file_handler = logging.FileHandler('/path/to/logfile.log')
# create the console_handler (which enables log messages to be sent to stdout)
console_handler = logging.StreamHandler()

# create the formatter, which controls the format of the log messages
# I like this format which includes the following information:
# 2022-04-01 14:03:03,446 - script_name.py - function_name - Line: 461 - INFO - Log message.
formatter = logging.Formatter('%(asctime)s - %(filename)s - %(funcName)s - Line: %(lineno)d - %(levelname)s - %(message)s')
# add the formatter to the handlers so they get formatted as desired
file_handler.setFormatter(formatter)
console_handler.setFormatter(formatter)

# set the severity level of the console_hander to ERROR so that only messages
# of severity ERROR or higher are printed to the console
console_handler.setLevel(logging.ERROR)

# add the handlers to the root_logger
root_logger.addHandler(file_handler)
root_logger.addHandler(console_handler)


# given the above setup
# running this line will append the info message to the /path/to/logfile.log
# but won't print to the console
root_logger.INFO("A casual message.")
# running this line will append the error message to the /path/to/logfile.log
# and will print it to the console
root_logger.ERROR("A serious issue!")

Popularity 10/10 Helpfulness 4/10 Language python

Source: docs.python.org

Tags: python py

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Contributed on Apr 04 2022

Charles-Alexandre Roy

0 Answers Avg Quality 2/10

python logging level

Comment

# python logging level
Level: NOTSET > DEBUG > INFO > WARNING > ERROR > CRITICAL
Value:   0    >  10   >  20  >    30   >  40   >  50
  
Logger.setLevel() specifies the lowest-severity log message a logger will
handle, where debug is the lowest built-in severity level and critical is
the highest built-in severity. 

For example, if the severity level is INFO, the logger will handle only INFO,
WARNING, ERROR, and CRITICAL messages and will ignore DEBUG messages.

Popularity 10/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: python py

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Contributed on Jan 31 2022

Martian

0 Answers Avg Quality 2/10

python logging levels

Comment

Logging Levels

CRITICAL
ERROR
WARNING
INFO
DEBUG
NOTSET

Popularity 10/10 Helpfulness 2/10 Language python

Source: docs.python.org

Tags: levels le

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Contributed on Nov 22 2021

Confused Centipede

0 Answers Avg Quality 2/10

python logging

Comment

# For example usage:
# For now, this is how I like to set up logging in Python:

import logging

# instantiate the root (parent) logger object (this is what gets called
# to create log messages)
root_logger = logging.getLogger()
# remove the default StreamHandler which isn't formatted well
root_logger.handlers = []
# set the lowest-severity log message to be included by the root_logger (this
# doesn't need to be set for each of the handlers that are added to the
# root_logger later because handlers inherit the logging level of their parent
# if their level is left unspecified. The root logger uses WARNING by default)
root_logger.setLevel(logging.INFO)

# create the file_handler, which controls log messages which will be written
# to a log file (the default write mode is append)
file_handler = logging.FileHandler('/path/to/logfile.log')
# create the console_handler (which enables log messages to be sent to stdout)
console_handler = logging.StreamHandler()

# create the formatter, which controls the format of the log messages
# I like this format which includes the following information:
# 2022-04-01 14:03:03,446 - script_name.py - function_name - Line: 461 - INFO - Log message.
formatter = logging.Formatter('%(asctime)s - %(filename)s - %(funcName)s - Line: %(lineno)d - %(levelname)s - %(message)s')
# add the formatter to the handlers so they get formatted as desired
file_handler.setFormatter(formatter)
console_handler.setFormatter(formatter)

# set the severity level of the console_hander to ERROR so that only messages
# of severity ERROR or higher are printed to the console
console_handler.setLevel(logging.ERROR)

# add the handlers to the root_logger
root_logger.addHandler(file_handler)
root_logger.addHandler(console_handler)


# given the above setup
# running this line will append the info message to the /path/to/logfile.log
# but won't print to the console
root_logger.INFO("A casual message.")
# running this line will append the error message to the /path/to/logfile.log
# and will print it to the console
root_logger.ERROR("A serious issue!")

Popularity 10/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: python py

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Contributed on Mar 01 2023

Zakaria Hassan

0 Answers Avg Quality 2/10

python logging exception

Comment

import logging

try:
    # Code that might raise an exception
    pass
except Exception as e:
    logging.error("An exception occurred: %s", str(e))

Popularity 9/10 Helpfulness 2/10 Language python

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

testing logging python

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