/usr/lib/python2.7/dist-packages/joblib/my_exceptions.py is in python-joblib 0.11-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Exceptions
"""
# Author: Gael Varoquaux < gael dot varoquaux at normalesup dot org >
# Copyright: 2010, Gael Varoquaux
# License: BSD 3 clause
import sys
from ._compat import PY3_OR_LATER
class JoblibException(Exception):
"""A simple exception with an error message that you can get to."""
def __init__(self, *args):
# We need to implement __init__ so that it is picked in the
# multiple heritance hierarchy in the class created in
# _mk_exception. Note: in Python 2, if you implement __init__
# in your exception class you need to set .args correctly,
# otherwise you can dump an exception instance with pickle but
# not load it (at load time an empty .args will be passed to
# the constructor). Also we want to be explicit and not use
# 'super' here. Using 'super' can cause a sibling class method
# to be called and we have no control the sibling class method
# constructor signature in the exception returned by
# _mk_exception.
Exception.__init__(self, *args)
def __repr__(self):
if hasattr(self, 'args') and len(self.args) > 0:
message = self.args[0]
else:
message = ''
name = self.__class__.__name__
return '%s\n%s\n%s\n%s' % (name, 75 * '_', message, 75 * '_')
__str__ = __repr__
class TransportableException(JoblibException):
"""An exception containing all the info to wrap an original
exception and recreate it.
"""
def __init__(self, message, etype):
# The next line set the .args correctly. This is needed to
# make the exception loadable with pickle
JoblibException.__init__(self, message, etype)
self.message = message
self.etype = etype
class WorkerInterrupt(Exception):
""" An exception that is not KeyboardInterrupt to allow subprocesses
to be interrupted.
"""
pass
_exception_mapping = dict()
def _mk_exception(exception, name=None):
# Create an exception inheriting from both JoblibException
# and that exception
if name is None:
name = exception.__name__
this_name = 'Joblib%s' % name
if this_name in _exception_mapping:
# Avoid creating twice the same exception
this_exception = _exception_mapping[this_name]
else:
if exception is Exception:
# JoblibException is already a subclass of Exception. No
# need to use multiple inheritance
return JoblibException, this_name
try:
this_exception = type(
this_name, (JoblibException, exception), {})
_exception_mapping[this_name] = this_exception
except TypeError:
# This happens if "Cannot create a consistent method
# resolution order", e.g. because 'exception' is a
# subclass of JoblibException or 'exception' is not an
# acceptable base class
this_exception = JoblibException
return this_exception, this_name
def _mk_common_exceptions():
namespace = dict()
if PY3_OR_LATER:
import builtins as _builtin_exceptions
common_exceptions = filter(
lambda x: x.endswith('Error'),
dir(_builtin_exceptions))
else:
import exceptions as _builtin_exceptions
common_exceptions = dir(_builtin_exceptions)
for name in common_exceptions:
obj = getattr(_builtin_exceptions, name)
if isinstance(obj, type) and issubclass(obj, BaseException):
this_obj, this_name = _mk_exception(obj, name=name)
namespace[this_name] = this_obj
return namespace
# Updating module locals so that the exceptions pickle right. AFAIK this
# works only at module-creation time
locals().update(_mk_common_exceptions())
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