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Added issue: iterable unpacking cannot be used in comprehension

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This commit is contained in:
Dave Halter
2017-07-23 23:22:05 +02:00
parent 33769c6243
commit 915b00dab7
2 changed files with 5 additions and 0 deletions
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4
parso/python/normalizer.py
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@@ -136,6 +136,10 @@ class ErrorFinder(Normalizer):
if node.parent.type not in _STAR_EXPR_PARENTS: if node.parent.type not in _STAR_EXPR_PARENTS:
message = "starred assignment target must be in a list or tuple" message = "starred assignment target must be in a list or tuple"
self._add_syntax_error(message, node) self._add_syntax_error(message, node)
if node.parent.type == 'testlist_comp':
# [*[] for a in [1]]
message = "iterable unpacking cannot be used in comprehension"
self._add_syntax_error(message, node)
elif node.type == 'comp_for': elif node.type == 'comp_for':
if node.children[0] == 'async' \ if node.children[0] == 'async' \
and not self._context.is_async_funcdef(): and not self._context.is_async_funcdef():

1
test/test_python_errors.py
View File

@@ -109,6 +109,7 @@ def test_python_exception_matches(code):
('del *a, b', '3.5'), ('del *a, b', '3.5'),
('def x(*): pass', '3.5'), ('def x(*): pass', '3.5'),
('async def foo():\n def nofoo():[x async for x in []]', '3.6'), ('async def foo():\n def nofoo():[x async for x in []]', '3.6'),
('[*[] for a in [1]]', '3.5'),
] ]
) )
def test_python_exception_matches_version(code, version): def test_python_exception_matches_version(code, version):