I have a function which catches all exceptions, and I want to be able to get the traceback as a string within this function.
So far this is not working:
def handle_errors(error_type, error_message, error_traceback):
"""catch errors"""
import traceback
error = {}
error['type'] = error_type.__name__
error['message'] = str(error_message)
error['file'] = os.path.split(error_traceback.tb_frame.f_code.co_filename)[1]
error['line'] = error_traceback.tb_lineno
error['traceback'] = repr(traceback.print_tb(error_traceback))
### finalise error handling and exit ###
sys.excepthook = handle_errors
It's the error['traceback']
line which is wrong. Do i even need to use the traceback
module?
As per this other vaguely similar question, I have tried:
error['traceback'] = repr(error_traceback.print_exc())
...but this gives an error:
Error in sys.excepthook:
Traceback (most recent call last):
File "xxxxxxxxxxx", line 54, in handle_errors
error['traceback'] = repr(error_traceback.print_exc())
AttributeError: 'traceback' object has no attribute 'print_exc'
Use traceback.format_tb()
instead of print_tb()
to get the formatted stack trace (as a list of lines):
error['traceback'] = ''.join(traceback.format_tb(error_traceback))
print_tb()
directly prints the traceback, that's why you get None
as a result (that's the default for any Python function that doesn't return anything explicitely).