Issue #24688: ast.get_docstring() for 'async def' functions.

Lib/ast.py

@@ -194,7 +194,7 @@ def get_docstring(node, clean=True):
     be found.  If the node provided does not have docstrings a TypeError
     will be raised.
     """
-    if not isinstance(node, (FunctionDef, ClassDef, Module)):
+    if not isinstance(node, (AsyncFunctionDef, FunctionDef, ClassDef, Module)):
         raise TypeError("%r can't have docstrings" % node.__class__.__name__)
     if node.body and isinstance(node.body[0], Expr) and \
        isinstance(node.body[0].value, Str):

Lib/test/test_ast.py

@@ -511,6 +511,9 @@ class ASTHelpers_Test(unittest.TestCase):
         self.assertEqual(ast.get_docstring(node.body[0]),
                          'line one\nline two')
 
+        node = ast.parse('async def foo():\n  """spam\n  ham"""')
+        self.assertEqual(ast.get_docstring(node.body[0]), 'spam\nham')
+
     def test_literal_eval(self):
         self.assertEqual(ast.literal_eval('[1, 2, 3]'), [1, 2, 3])
         self.assertEqual(ast.literal_eval('{"foo": 42}'), {"foo": 42})

Misc/NEWS

@@ -53,6 +53,8 @@ Library
 - Issue #24669: Fix inspect.getsource() for 'async def' functions.
   Patch by Kai Groner.
 
+- Issue #24688: ast.get_docstring() for 'async def' functions.
+
 Build
 -----