Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/frozenlist/__init__.py: 53%

1import os 

2import types 

3from collections.abc import MutableSequence 

4from functools import total_ordering 

5 

6__version__ = "1.7.0" 

7 

8__all__ = ("FrozenList", "PyFrozenList") # type: Tuple[str, ...] 

9 

10 

11NO_EXTENSIONS = bool(os.environ.get("FROZENLIST_NO_EXTENSIONS")) # type: bool 

12 

13 

14@total_ordering 

15class FrozenList(MutableSequence): 

16 __slots__ = ("_frozen", "_items") 

17 __class_getitem__ = classmethod(types.GenericAlias) 

18 

19 def __init__(self, items=None): 

20 self._frozen = False 

21 if items is not None: 

22 items = list(items) 

23 else: 

24 items = [] 

25 self._items = items 

26 

27 @property 

28 def frozen(self): 

29 return self._frozen 

30 

31 def freeze(self): 

32 self._frozen = True 

33 

34 def __getitem__(self, index): 

35 return self._items[index] 

36 

37 def __setitem__(self, index, value): 

38 if self._frozen: 

39 raise RuntimeError("Cannot modify frozen list.") 

40 self._items[index] = value 

41 

42 def __delitem__(self, index): 

43 if self._frozen: 

44 raise RuntimeError("Cannot modify frozen list.") 

45 del self._items[index] 

46 

47 def __len__(self): 

48 return self._items.__len__() 

49 

50 def __iter__(self): 

51 return self._items.__iter__() 

52 

53 def __reversed__(self): 

54 return self._items.__reversed__() 

55 

56 def __eq__(self, other): 

57 return list(self) == other 

58 

59 def __le__(self, other): 

60 return list(self) <= other 

61 

62 def insert(self, pos, item): 

63 if self._frozen: 

64 raise RuntimeError("Cannot modify frozen list.") 

65 self._items.insert(pos, item) 

66 

67 def __repr__(self): 

68 return f"<FrozenList(frozen={self._frozen}, {self._items!r})>" 

69 

70 def __hash__(self): 

71 if self._frozen: 

72 return hash(tuple(self)) 

73 else: 

74 raise RuntimeError("Cannot hash unfrozen list.") 

75 

76 

77PyFrozenList = FrozenList 

78 

79 

80if not NO_EXTENSIONS: 

81 try: 

82 from ._frozenlist import FrozenList as CFrozenList # type: ignore 

83 except ImportError: # pragma: no cover 

84 pass 

85 else: 

86 FrozenList = CFrozenList # type: ignore