def exceptionAsUnicode(err, add_type=True):
r"""
add_type option changes the output for KeyError and exception with an empty
message (eg. AssertionError). If the option is True (default): add the type
as prefix, otherwise return an empty string.
>>> exceptionAsUnicode(Exception("ascii"))
u'ascii'
>>> exceptionAsUnicode(Exception("h\xe9 h\xe9"))
u'h\xe9 h\xe9'
>>> exceptionAsUnicode(UnicodeException(u"h\xe9 h\xe9"))
u'h\xe9 h\xe9'
>>> exceptionAsUnicode(AssertionError())
u'[AssertionError]'
>>> exceptionAsUnicode(KeyError(3))
u'[KeyError] 3'
>>> exceptionAsUnicode(KeyError(3), False)
u'3'
"""
if isinstance(err, (IOError, OSError)) and err.strerror:
# Get "message" instead of "(42, 'message')"
return toUnicode(err.strerror)
if isinstance(err, socket_error):
# Get 'Connexion refus\xc3\xa9e' instead of
# (111, 'Connexion refus\xc3\xa9e')
args = err.args
if 2 <= len(args):
msg = args[1]
else:
msg = args[0]
return toUnicode(msg)
try:
text = unicode(err)
except (UnicodeDecodeError, UnicodeEncodeError):
as_bytes = str(err)
text = toUnicode(as_bytes)
if add_type:
if isinstance(err, KeyError):
# KeyError message is the key, which is usually meaningless:
# add [KeyError] prefix
text = u"[%s] %s" % (err.__class__.__name__, text)
elif not text:
# Some errors (eg. AssertionError) have no text, so display the
# exception type instead of an empty string
text = u"[%s]" % err.__class__.__name__
return text
def formatTraceback(traceback):
if not isinstance(traceback, str):
traceback = format_exception(*traceback)
if traceback == ["None\n"]:
return None
traceback = ''.join(traceback)
traceback = traceback.rstrip()
lines = traceback.splitlines()
return [toUnicode(line) for line in lines]
def __init__(self, message):
self.unicode_message = toUnicode(message)
bytes_message = self.unicode_message.encode("ASCII", "replace")
Exception.__init__(self, bytes_message)