errors.py

# Copyright 2024 The Chromium Authors.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

'''Custom error types.
'''


class UserInstructions(Exception):
    '''Handy exception subclass that just prints very verbose instructions to the
  user. Normal exceptions tend to lose the message in the stack trace, which we
  probably don't care about.
  '''
    __slots__ = ('_msg', )

    def __init__(self, msg):
        self._msg = msg

    def __str__(self):
        sep = '=' * 78
        return f'\n\n{sep}\n{self._msg}\n{sep}\n\n'