Add to_tuple()

Author: cleoold

tests/test_usage.py

@@ -52,6 +52,11 @@ def test_to_set(self):
         en = Enumerable(gen)
         assert en.to_set() == {0, 1, 2, 3, 4, 77}
 
+    def test_to_tuple(self):
+        gen = (chr(i) for i in range(120, 123))
+        en = Enumerable(gen)
+        assert en.to_tuple() == ('x', 'y', 'z')
+
     def test_to_dict_overload1(self):
         gen = ((i, chr(i)) for i in range(120, 123))
         en = Enumerable(gen)

types_linq/enumerable.py

@@ -1,5 +1,5 @@
 from __future__ import annotations
-from typing import Any, Callable, Container, Deque, Dict, Iterable, Iterator, List, NoReturn, Optional, Reversible, Sequence, Set, Sized, TYPE_CHECKING, Type, Generic, Union
+from typing import Any, Callable, Container, Deque, Dict, Iterable, Iterator, List, NoReturn, Optional, Reversible, Sequence, Set, Sized, TYPE_CHECKING, Tuple, Type, Generic, Union
 
 if TYPE_CHECKING:
     from .lookup import Lookup
@@ -876,3 +876,6 @@ def elements_in(self, *args) -> Enumerable[TSource_co]:
             return self.elements_in(start, stop, 1)
         else:  # len(args) == 3
             return self.elements_in(slice(*args))
+
+    def to_tuple(self) -> Tuple[TSource_co, ...]:
+        return tuple(e for e in self)

types_linq/enumerable.pyi

@@ -868,3 +868,8 @@ class Enumerable(Sequence[TSource_co], Generic[TSource_co]):
         '''
         Produces a subsequence with indices that define a slice.
         '''
+
+    def to_tuple(self) -> Tuple[TSource_co, ...]:
+        '''
+        Enumerates all values and returns a tuple containing them.
+        '''