"""optik.errors
Exception classes used by Optik.
"""
# Copyright (c) 2001-2004 Gregory P. Ward. All rights reserved.
# See the README.txt distributed with Optik for licensing terms.
import string
try:
from gettext import gettext
except ImportError:
def gettext(message):
return message
_ = gettext
__revision__ = "$Id: errors.py 470 2004-12-07 01:39:56Z gward $"
__all__ = ['OptikError', 'OptionError', 'OptionConflictError',
'OptionValueError', 'BadOptionError']
class OptikError (Exception):
def __init__(self, msg):
self.msg = msg
def __str__(self):
return self.msg
class OptionError (OptikError):
"""
Raised if an Option instance is created with invalid or
inconsistent arguments.
"""
def __init__(self, msg, option):
self.msg = msg
self.option_id = str(option)
def __str__(self):
if self.option_id:
return "option %s: %s" % (self.option_id, self.msg)
else:
return self.msg
class OptionConflictError (OptionError):
"""
Raised if conflicting options are added to an OptionParser.
"""
class OptionValueError (OptikError):
"""
Raised if an invalid option value is encountered on the command
line.
"""
class BadOptionError (OptikError):
"""
Raised if an invalid option is seen on the command line.
"""
def __init__(self, opt_str):
self.opt_str = opt_str
def __str__(self):
return _("no such option: %s") % self.opt_str
class AmbiguousOptionError (BadOptionError):
"""
Raised if an ambiguous option is seen on the command line.
"""
def __init__(self, opt_str, possibilities):
BadOptionError.__init__(self, opt_str)
self.possibilities = possibilities
def __str__(self):
return (_("ambiguous option: %s (%s?)")
% (self.opt_str, string.join(self.possibilities, ", ")))
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