def _format_stack(frame):
"""
Pretty-print the stack of `frame` like logging would.
"""
sio = StringIO()
sio.write('Stack (most recent call last):\n')
traceback.print_stack(frame, file=sio)
sinfo = sio.getvalue()
if sinfo[-1] == '\n':
sinfo = sinfo[:-1]
sio.close()
return sinfo
def _format_exception(exc_info):
"""
Prettyprint an `exc_info` tuple.
Shamelessly stolen from stdlib's logging module.
"""
sio = StringIO()
traceback.print_exception(exc_info[0], exc_info[1], exc_info[2], None, sio)
s = sio.getvalue()
sio.close()
if s[-1:] == "\n":
s = s[:-1]
return s