prevent lambda functions from having docstrings #8164

This commit is contained in:
Benjamin Peterson 2010-03-17 20:41:42 +00:00
parent 78c1871d21
commit 0dee9c1b5c
3 changed files with 11 additions and 0 deletions

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@ -353,6 +353,10 @@ if 1:
f1, f2 = f()
self.assertNotEqual(id(f1.func_code), id(f2.func_code))
def test_lambda_doc(self):
l = lambda: "foo"
self.assertIsNone(l.__doc__)
def test_unicode_encoding(self):
code = u"# -*- coding: utf-8 -*-\npass\n"
self.assertRaises(SyntaxError, compile, code, "tmp", "exec")

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@ -12,6 +12,8 @@ What's New in Python 2.7 beta 1?
Core and Builtins
-----------------
- Issue #8164: Don't allow lambda functions to have a docstring.
- Issue #3137: Don't ignore errors at startup, especially a keyboard interrupt
(SIGINT). If an error occurs while importing the site module, the error is
printed and Python exits. Initialize the GIL before importing the site

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@ -1518,6 +1518,11 @@ compiler_lambda(struct compiler *c, expr_ty e)
/* unpack nested arguments */
compiler_arguments(c, args);
/* Make None the first constant, so the lambda can't have a
docstring. */
if (compiler_add_o(c, c->u->u_consts, Py_None) < 0)
return 0;
c->u->u_argcount = asdl_seq_LEN(args->args);
VISIT_IN_SCOPE(c, expr, e->v.Lambda.body);