Issue #24400: Remove inspect.isawaitable().

isawaitable() was added before collections.abc.Awaitable; now,
with Awaitable, it is no longer needed (we don't have ishashable()
or isiterable() methods in the inspect module either).

2 files changed, 0 insertions, 29 deletions

diff --git a/Lib/inspect.py b/Lib/inspect.py
index 6285a6c..f48769e 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -186,10 +186,6 @@ def iscoroutinefunction(object):
     return bool((isfunction(object) or ismethod(object)) and
                 object.__code__.co_flags & CO_COROUTINE)
 
-def isawaitable(object):
-    """Return true if the object can be used in "await" expression."""
-    return isinstance(object, collections.abc.Awaitable)
-
 def isgenerator(object):
     """Return true if the object is a generator.
 
diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
index 39fa484..ebd106c 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -159,31 +159,6 @@ class TestPredicates(IsTestBase):
 
         coro.close(); gen_coro.close() # silence warnings
 
-    def test_isawaitable(self):
-        def gen(): yield
-        self.assertFalse(inspect.isawaitable(gen()))
-
-        coro = coroutine_function_example(1)
-        gen_coro = gen_coroutine_function_example(1)
-
-        self.assertTrue(
-            inspect.isawaitable(coro))
-        self.assertTrue(
-            inspect.isawaitable(gen_coro))
-
-        class Future:
-            def __await__():
-                pass
-        self.assertTrue(inspect.isawaitable(Future()))
-        self.assertFalse(inspect.isawaitable(Future))
-
-        class NotFuture: pass
-        not_fut = NotFuture()
-        not_fut.__await__ = lambda: None
-        self.assertFalse(inspect.isawaitable(not_fut))
-
-        coro.close(); gen_coro.close() # silence warnings
-
     def test_isroutine(self):
         self.assertTrue(inspect.isroutine(mod.spam))
         self.assertTrue(inspect.isroutine([].count))