old_contents: # Copyright (c) 2014 Ian C. Good
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  #
  
  """Module containing the exceptions that may be used by pymap plugins..
  
  """
  
  from .core import PymapError
  
  __all__ = ['MailboxNotFound', 'MailboxConflict', 'MailboxHasChildren',
             'MailboxReadOnly', 'AppendFailure']
  
  
  class MailboxError(PymapError):
  
      def __init__(self, mailbox):
          super().__init__(mailbox)
          self.mailbox = mailbox
  
  
  class MailboxNotFound(MailboxError):
      """The requested mailbox was not found."""
      pass
  
  
  class MailboxConflict(MailboxError):
      """The mailbox cannot be created or renamed because of a naming conflict
      with another mailbox.
  
      """
      pass
  
  
  class MailboxHasChildren(PymapError):
      """The mailbox cannot be deleted because there are other inferior
      heirarchical mailboxes below it.
  
      """
      pass
  
  
  class MailboxReadOnly(PymapError):
      """The mailbox is opened read-only and the requested operation is not
      allowed.
  
      """
      pass
  
  
  class AppendFailure(PymapError):
      """The mailbox append operation failed."""
      pass
  
new_contents: # Copyright (c) 2014 Ian C. Good
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  #
  
  """Module containing the exceptions that may be used by pymap plugins..
  
  """
  
  from .core import PymapError
  
  __all__ = ['MailboxNotFound', 'MailboxConflict', 'MailboxHasChildren',
             'MailboxReadOnly', 'AppendFailure']
  
  
  class MailboxError(PymapError):
  
      def __init__(self, mailbox):
          super().__init__(mailbox)
          self.mailbox = mailbox
  
  
  class MailboxNotFound(MailboxError):
      """The requested mailbox was not found."""
      pass
  
  
  class MailboxConflict(MailboxError):
      """The mailbox cannot be created or renamed because of a naming conflict
      with another mailbox.
  
      """
      pass
  
  
  class MailboxHasChildren(MailboxError):
      """The mailbox cannot be deleted because there are other inferior
      heirarchical mailboxes below it.
  
      """
      pass
  
  
  class MailboxReadOnly(MailboxError):
      """The mailbox is opened read-only and the requested operation is not
      allowed.
  
      """
      pass
  
  
  class AppendFailure(MailboxError):
      """The mailbox append operation failed."""
      pass
  
subject: make other exceptions inherit MailboxError