exc.py
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exc.py
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	# Copyright (C) 2015 The Software Heritage developers
	# See the AUTHORS file at the top-level directory of this distribution
	# License: GNU General Public License version 3, or any later version
	# See top-level LICENSE file for more information


	class Error(Exception):
	def __str__(self):
	return "storage error on object: %s" % self.args


	class ObjNotFoundError(Error):
	def __str__(self):
	return "object not found: %s" % self.args


	class ObjStorageAPIError(Exception):
	""" Specific internal exception of an object storage (mainly connection).
	"""

	def __str__(self):
	args = self.args
	return "An unexpected error occurred in the api backend: %s" % args


	class ReadOnlyObjStorage(Error):
	def __init__(self, method, *args):
	super().__init__(*args)
	self.method = method

	def __str__(self):
	return "This object storage is Read-Only: cannot use %s" % self.method


	class NonIterableObjStorage(Error):
	def __init__(self, method, *args):
	super().__init__(*args)
	self.method = method

	def __str__(self):
	return "This object storage is not iterable: cannot use %s" % self.method