bpo-32911: Revert bpo-29463. (GH-7121) (GH-7197)
Remove the docstring attribute of AST types and restore docstring
expression as a first stmt in their body.
Co-authored-by: INADA Naoki <methane@users.noreply.github.com>
diff --git a/Lib/ast.py b/Lib/ast.py
index 2ecb03f..134d9d2 100644
--- a/Lib/ast.py
+++ b/Lib/ast.py
@@ -206,7 +206,15 @@
"""
if not isinstance(node, (AsyncFunctionDef, FunctionDef, ClassDef, Module)):
raise TypeError("%r can't have docstrings" % node.__class__.__name__)
- text = node.docstring
+ if not node.body:
+ return None
+ node = node.body[0].value
+ if isinstance(node, Str):
+ text = node.s
+ elif isinstance(node, Constant) and isinstance(node.value, str):
+ text = node.value
+ else:
+ return None
if clean and text:
import inspect
text = inspect.cleandoc(text)