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bpo-29463: Add docstring field to some AST nodes. (#46)

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* bpo-29463: Add docstring field to some AST nodes.

ClassDef, ModuleDef, FunctionDef, and AsyncFunctionDef has docstring
field for now.  It was first statement of there body.

* fix document.  thanks travis!

* doc fixes
This commit is contained in:
INADA Naoki 2017-02-23 00:31:59 +09:00 • committed by Victor Stinner
parent 1bc156430b
commit cb41b2766d
15 changed files with 3153 additions and 3048 deletions
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10
Lib/ast.py
View file

@ -197,15 +197,7 @@ def get_docstring(node, clean=True):
"""
if not isinstance(node, (AsyncFunctionDef, FunctionDef, ClassDef, Module)):
raise TypeError("%r can't have docstrings" % node.__class__.__name__)
if not(node.body and isinstance(node.body[0], Expr)):
return
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
text = node.docstring
if clean:
import inspect
text = inspect.cleandoc(text)