def printTraceback(self,
file=None,
elideFrameworkCode=False,
detail='default'):
"""
Emulate Python's standard error reporting mechanism.
@param file: If specified, a file-like object to which to write the
traceback.
@param elideFrameworkCode: A flag indicating whether to attempt to
remove uninteresting frames from within Twisted itself from the
output.
@param detail: A string indicating how much information to include
in the traceback. Must be one of C{'brief'}, C{'default'}, or
C{'verbose'}.
"""
if file is None:
file = log.logerr
w = file.write
# Preamble
if detail == 'verbose':
w('*--- Failure #%d%s---\n' %
(self.count, (self.pickled and ' (pickled) ') or ' '))
elif detail == 'brief':
if self.frames:
hasFrames = 'Traceback'
else:
hasFrames = 'Traceback (failure with no frames)'
w("%s: %s: %s\n" % (hasFrames, reflect.safe_str(
self.type), reflect.safe_str(self.value)))
else:
w('Traceback (most recent call last):\n')
# Frames, formatted in appropriate style
if self.frames:
if not elideFrameworkCode:
format_frames(self.stack[-traceupLength:], w, detail)
w("%s\n" % (EXCEPTION_CAUGHT_HERE, ))
format_frames(self.frames, w, detail)
elif not detail == 'brief':
# Yeah, it's not really a traceback, despite looking like one...
w("Failure: ")
# postamble, if any
if not detail == 'brief':
# Unfortunately, self.type will not be a class object if this
# Failure was created implicitly from a string exception.
# qual() doesn't make any sense on a string, so check for this
# case here and just write out the string if that's what we
# have.
if isinstance(self.type, (str, unicode)):
w(self.type + "\n")
else:
w("%s: %s\n" %
(reflect.qual(self.type), reflect.safe_str(self.value)))
# chaining
if isinstance(self.value, Failure):
# TODO: indentation for chained failures?
file.write(" (chained Failure)\n")
self.value.printTraceback(file, elideFrameworkCode, detail)
if detail == 'verbose':
w('*--- End of Failure #%d ---\n' % self.count)
def printTraceback(self, file=None, elideFrameworkCode=False, detail='default'):
"""
Emulate Python's standard error reporting mechanism.
@param file: If specified, a file-like object to which to write the
traceback.
@param elideFrameworkCode: A flag indicating whether to attempt to
remove uninteresting frames from within Twisted itself from the
output.
@param detail: A string indicating how much information to include
in the traceback. Must be one of C{'brief'}, C{'default'}, or
C{'verbose'}.
"""
if file is None:
file = log.logerr
w = file.write
# Preamble
if detail == 'verbose':
w( '*--- Failure #%d%s---\n' %
(self.count,
(self.pickled and ' (pickled) ') or ' '))
elif detail == 'brief':
if self.frames:
hasFrames = 'Traceback'
else:
hasFrames = 'Traceback (failure with no frames)'
w("%s: %s: %s\n" % (
hasFrames,
reflect.safe_str(self.type),
reflect.safe_str(self.value)))
else:
w( 'Traceback (most recent call last):\n')
# Frames, formatted in appropriate style
if self.frames:
if not elideFrameworkCode:
format_frames(self.stack[-traceupLength:], w, detail)
w("%s\n" % (EXCEPTION_CAUGHT_HERE,))
format_frames(self.frames, w, detail)
elif not detail == 'brief':
# Yeah, it's not really a traceback, despite looking like one...
w("Failure: ")
# postamble, if any
if not detail == 'brief':
# Unfortunately, self.type will not be a class object if this
# Failure was created implicitly from a string exception.
# qual() doesn't make any sense on a string, so check for this
# case here and just write out the string if that's what we
# have.
if isinstance(self.type, (str, unicode)):
w(self.type + "\n")
else:
w("%s: %s\n" % (reflect.qual(self.type),
reflect.safe_str(self.value)))
# chaining
if isinstance(self.value, Failure):
# TODO: indentation for chained failures?
file.write(" (chained Failure)\n")
self.value.printTraceback(file, elideFrameworkCode, detail)
if detail == 'verbose':
w('*--- End of Failure #%d ---\n' % self.count)
def getErrorMessage(self):
"""Get a string of the exception which caused this Failure."""
if isinstance(self.value, Failure):
return self.value.getErrorMessage()
return reflect.safe_str(self.value)
def getErrorMessage(self): """Get a string of the exception which caused this Failure.""" if isinstance(self.value, Failure): return self.value.getErrorMessage() return reflect.safe_str(self.value)