mapnik/scons/scons-local-0.97/SCons/Optik/errors.py
2007-08-07 15:50:34 +00:00

55 lines
1.3 KiB
Python

"""optik.errors
Exception classes used by Optik.
"""
__revision__ = "/home/scons/scons/branch.0/baseline/src/engine/SCons/Optik/errors.py 0.97.D001 2007/05/17 11:35:19 knight"
# Original Optik revision this is based on:
__Optik_revision__ = "errors.py,v 1.5 2002/02/13 23:29:47 gward Exp"
# Copyright (c) 2001 Gregory P. Ward. All rights reserved.
# See the README.txt distributed with Optik for licensing terms.
# created 2001/10/17 GPW (from optik.py)
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 or ambiguous option is seen on the command-line.
"""