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pacofvf on June 18, 2015 | parent | context | favorite | on: The most underrated feature in Python 3

by reading this I just learned about the concept of chained exceptions, although I can't see why is so useful, the built-in traceback and sys module has always been good enough:

    import sys,traceback
    try:
        ...
    except Exception as ex:
        exc_type, exc_value, exc_traceback = sys.exc_info()
        logger.error("%s:%s" % (str(ex),  str(traceback.format_exception(exc_type, exc_value, exc_traceback))))
        raise MyException(" :( ")

baq on June 18, 2015 [–]

that's not nearly good enough, it's barely acceptable. i've been programming python for a decade and the fact you have to do this with exceptions was plainly dumb. as a programmer you should never have to worry about preserving tracebacks.

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