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"""optik.errors
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Exception classes used by Optik.
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"""
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# Copyright (c) 2001-2004 Gregory P. Ward. All rights reserved.
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# See the README.txt distributed with Optik for licensing terms.
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import string
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try:
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from gettext import gettext
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except ImportError:
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def gettext(message):
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return message
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_ = gettext
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__revision__ = "$Id: errors.py,v 1.1 2009/02/05 23:03:30 stechong Exp $"
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__all__ = ['OptikError', 'OptionError', 'OptionConflictError',
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'OptionValueError', 'BadOptionError']
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class OptikError (Exception):
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def __init__(self, msg):
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self.msg = msg
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def __str__(self):
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return self.msg
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class OptionError (OptikError):
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"""
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Raised if an Option instance is created with invalid or
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inconsistent arguments.
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"""
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def __init__(self, msg, option):
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self.msg = msg
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self.option_id = str(option)
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def __str__(self):
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if self.option_id:
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return "option %s: %s" % (self.option_id, self.msg)
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else:
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return self.msg
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class OptionConflictError (OptionError):
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"""
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Raised if conflicting options are added to an OptionParser.
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"""
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class OptionValueError (OptikError):
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"""
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Raised if an invalid option value is encountered on the command
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line.
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"""
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class BadOptionError (OptikError):
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"""
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Raised if an invalid option is seen on the command line.
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"""
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def __init__(self, opt_str):
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self.opt_str = opt_str
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def __str__(self):
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return _("no such option: %s") % self.opt_str
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class AmbiguousOptionError (BadOptionError):
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"""
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Raised if an ambiguous option is seen on the command line.
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"""
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def __init__(self, opt_str, possibilities):
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BadOptionError.__init__(self, opt_str)
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self.possibilities = possibilities
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def __str__(self):
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return (_("ambiguous option: %s (%s?)")
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% (self.opt_str, string.join(self.possibilities, ", ")))
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