获取完整错误路径
Logging the full stacktrace
A best practice is to have a logger set up for your module. It will know the name of the module and be able to change levels (among other attributes, such as handlers)
import logging logging.basicConfig(level=logging.DEBUG) logger = logging.getLogger(__name__)
And we can use this logger to get the error:
try: do_something_that_might_error() except Exception as error: logger.exception(error)
Which logs:
ERROR:__main__:something bad happened! Traceback (most recent call last): File "<stdin>", line 2, in <module> File "<stdin>", line 2, in do_something_that_might_error File "<stdin>", line 2, in raise_error RuntimeError: something bad happened!
And so we get the same output as when we have an error:
>>> do_something_that_might_error() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<stdin>", line 2, in do_something_that_might_error File "<stdin>", line 2, in raise_error RuntimeError: something bad happened!
Getting just the string
If you really just want the string, use the traceback.format_exc function instead, demonstrating logging the string here:
import traceback try: do_something_that_might_error() except Exception as error: just_the_string = traceback.format_exc() logger.debug(just_the_string)
Which logs:
DEBUG:__main__:Traceback (most recent call last): File "<stdin>", line 2, in <module> File "<stdin>", line 2, in do_something_that_might_error File "<stdin>", line 2, in raise_error RuntimeError: something bad happened!