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evaluate lambda keyword-only defaults after positional defaults (#16967 again)

This commit is contained in:
Benjamin Peterson 2013-02-10 09:48:22 -05:00
parent 8b466c9932
commit 419d9a83d5
4 changed files with 9 additions and 5 deletions
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4
Lib/importlib/_bootstrap.py
View File

@ -396,7 +396,7 @@ Known values:
3210 (added size modulo 2**32 to the pyc header)
Python 3.3a1 3220 (changed PEP 380 implementation)
Python 3.3a4 3230 (revert changes to implicit __class__ closure)
Python 3.4a1 3240 (evaluate positional default arguments before
Python 3.4a1 3250 (evaluate positional default arguments before
keyword-only defaults)
MAGIC must change whenever the bytecode emitted by the compiler may no
@ -404,7 +404,7 @@ longer be understood by older implementations of the eval loop (usually
due to the addition of new opcodes).
"""
_RAW_MAGIC_NUMBER = 3240 | ord('\r') << 16 | ord('\n') << 24
_RAW_MAGIC_NUMBER = 3250 | ord('\r') << 16 | ord('\n') << 24
_MAGIC_BYTES = bytes(_RAW_MAGIC_NUMBER >> n & 0xff for n in range(0, 25, 8))
_PYCACHE = '__pycache__'

4
Lib/test/test_keywordonlyarg.py
View File

@ -183,6 +183,10 @@ class KeywordOnlyArgTestCase(unittest.TestCase):
def f(v=a, x=b, *, y=c, z=d):
pass
self.assertEqual(str(err.exception), "global name 'b' is not defined")
with self.assertRaises(NameError) as err:
f = lambda v=a, x=b, *, y=c, z=d: None
self.assertEqual(str(err.exception), "global name 'b' is not defined")
def test_main():
run_unittest(KeywordOnlyArgTestCase)

4
Python/compile.c
View File

@ -1794,14 +1794,14 @@ compiler_lambda(struct compiler *c, expr_ty e)
return 0;
}
if (args->defaults)
VISIT_SEQ(c, expr, args->defaults);
if (args->kwonlyargs) {
int res = compiler_visit_kwonlydefaults(c, args->kwonlyargs,
args->kw_defaults);
if (res < 0) return 0;
kw_default_count = res;
}
if (args->defaults)
VISIT_SEQ(c, expr, args->defaults);
if (!compiler_enter_scope(c, name, COMPILER_SCOPE_FUNCTION,
(void *)e, e->lineno))
return 0;

2
Python/importlib.h
View File

@ -756,7 +756,7 @@ unsigned char _Py_M__importlib[] = {
114,101,109,111,118,101,100,49,1,0,0,115,2,0,0,0,
0,8,117,25,0,0,0,95,99,97,108,108,95,119,105,116,
104,95,102,114,97,109,101,115,95,114,101,109,111,118,101,100,
105,168,12,0,0,117,1,0,0,0,13,105,16,0,0,0,
105,178,12,0,0,117,1,0,0,0,13,105,16,0,0,0,
117,1,0,0,0,10,105,24,0,0,0,99,1,0,0,0,
0,0,0,0,2,0,0,0,3,0,0,0,99,0,0,0,
115,29,0,0,0,124,0,0,93,19,0,125,1,0,116,0,