Coverage for sources/accretive/__/exceptions.py: 100%

1# vim: set filetype=python fileencoding=utf-8: 

2# -*- coding: utf-8 -*- 

3 

4#============================================================================# 

5# # 

6# Licensed under the Apache License, Version 2.0 (the "License"); # 

7# you may not use this file except in compliance with the License. # 

8# You may obtain a copy of the License at # 

9# # 

10# http://www.apache.org/licenses/LICENSE-2.0 # 

11# # 

12# Unless required by applicable law or agreed to in writing, software # 

13# distributed under the License is distributed on an "AS IS" BASIS, # 

14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # 

15# See the License for the specific language governing permissions and # 

16# limitations under the License. # 

17# # 

18#============================================================================# 

19 

20 

21''' Family of exceptions for package internals. ''' 

22 

23 

24from . import imports as __ 

25from . import nomina as _nomina 

26 

27 

28class Omniexception( 

29 __.ccstd.Object, BaseException, 

30 instances_visibles = ( 

31 '__cause__', '__context__', _nomina.is_public_identifier ), 

32): 

33 ''' Base for all exceptions raised internally. ''' 

34 

35 

36class Omnierror( Omniexception, Exception ): 

37 ''' Base for error exceptions raised internally. ''' 

38 

39 

40class EntryImmutability( Omnierror, TypeError ): 

41 ''' Attempt to update or remove immutable dictionary entry. ''' 

42 

43 def __init__( self, indicator: __.cabc.Hashable ) -> None: 

44 super( ).__init__( 

45 f"Cannot alter or remove existing entry for {indicator!r}." ) 

46 

47 

48class OperationInvalidity( Omnierror, RuntimeError, TypeError ): 

49 ''' Attempt to perform invalid operation. ''' 

50 

51 def __init__( self, name: str ) -> None: 

52 super( ).__init__( f"Operation {name!r} is not valid on this object." )