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import traceback
def format_exception(exception):
"""Format an exception as diagnostics output.
exception is the tuple as expected from sys.exc_info.
"""
exception_lines = traceback.format_exception(*exception)
# The lines returned from format_exception do not strictly contain
# one line per element in the list (i.e. some elements have new
# line characters in the middle). Normalize that oddity.
lines = "".join(exception_lines).splitlines(True)
return format_as_diagnostics(lines)
def format_as_diagnostics(lines):
"""Format the lines as diagnostics output by prepending the diagnostic #.
This function makes no assumptions about the line endings.
"""
return "".join(["# " + line for line in lines])
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