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1 # Copyright (C) 2012 Vaadin Ltd. 2 # Copyright (C) 2012 Richard Lincoln 3 # 4 # Licensed under the Apache License, Version 2.0 (the "License"); 5 # you may not use this file except in compliance with the License. 6 # You may obtain a copy of the License at 7 # 8 # http://www.apache.org/licenses/LICENSE-2.0 9 # 10 # Unless required by applicable law or agreed to in writing, software 11 # distributed under the License is distributed on an "AS IS" BASIS, 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 # See the License for the specific language governing permissions and 14 # limitations under the License. 15 16 """Exception for cases where a container does not support a specific 17 type of filters.""" 1820 """Exception for cases where a container does not support a specific 21 type of filters. 22 23 If possible, this should be thrown already when adding a filter to a 24 container. If a problem is not detected at that point, an 25 L{NotImplementedError} can be thrown when attempting to perform filtering. 26 """ 274429 nargs = len(args) 30 if nargs == 0: 31 pass 32 elif nargs == 1: 33 if isinstance(args[0], Exception): 34 cause, = args 35 super(UnsupportedFilterException, self).__init__(cause) 36 else: 37 message, = args 38 super(UnsupportedFilterException, self).__init__(message) 39 elif nargs == 2: 40 message, cause = args 41 super(UnsupportedFilterException, self).__init__(message, cause) 42 else: 43 raise ValueError
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