[PyMemos - Exception, traceback, logs] #python #memo #exception #traceback #log

logging_to_file.py

import logging

logging.basicConfig(filename='myProgLog.txt', level=logging.DEBUG, format='%(asctime)s - %(levelname)s - %(message)s')
# logging.disable(logging.CRITICAL)
logging.debug('Start of program')
def factorial(n):
    logging.debug('Start of factorial(%s)' %(n))
    total = 1
    if not ((n == 0) or (n == 1)):
        for i in range(1, n+1):
            total *= i
            logging.debug('Return value is %s' %(total))
    logging.debug('Return value is %s' %(total))
    return total
logging.debug('End of porogram')

traceback_logs.py

import traceback

try:
    raise Exception('This is the error message')
except:
    errorFile = open('error_log.txt', 'a')
    errorFile.write(traceback.format_exc())
    errorFile.close()
    print('The traceback info was written to error_log.txt')