an exception traceback and continue

[snippsat]

Sound like a logging setup.
Example:

import my_log
 
def add(x, y):
   try:
       return(x + y)
   except Exception as error:
       my_log.logger.exception('msg')
 
if __name__ == '__main__':
   my_log.logger.info('Start')
   value = add(33, '50')
   my_log.logger.debug(value)
   my_log.logger.info('Finish')
   print(value)

One run without error and one with '50'
There are many cases where not give all error message to users make sense,
server,GUI...ect.
logg.log:

Output:
2018-01-17 08:35:50,623 - my_log - INFO - Start
2018-01-17 08:35:50,623 - my_log - DEBUG - 83
2018-01-17 08:35:50,623 - my_log - INFO - Finish
2018-01-17 08:36:18,791 - my_log - INFO - Start
2018-01-17 08:36:18,791 - my_log - ERROR - msg
Traceback (most recent call last):
  File "_logging.py", line 5, in add
    return(x + y)
TypeError: unsupported operand type(s) for +: 'int' and 'str'
2018-01-17 08:36:18,791 - my_log - DEBUG - None
2018-01-17 08:36:18,795 - my_log - INFO - Finish

setup my_log.py:

Hide/Show

import logging
 
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
 
# Create a file handler
handler = logging.FileHandler('logg.log')
handler.setLevel(logging.DEBUG)
 
# Create a logging format
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
 
# Add the handlers to the logger
logger.addHandler(handler)