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gh-92671: Don't omit parentheses when unparsing empty tuples (GH-92673)

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Batuhan Taskaya 2022-05-16 15:38:06 +03:00 committed by GitHub
parent ca0cc9c433
commit f6fd8aac13
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3 changed files with 9 additions and 1 deletions
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6
Lib/ast.py
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@ -1335,7 +1335,11 @@ def write_item(item):
)
def visit_Tuple(self, node):
with self.require_parens(_Precedence.TUPLE, node):
with self.delimit_if(
"(",
")",
len(node.elts) == 0 or self.get_precedence(node) > _Precedence.TUPLE
):
self.items_view(self.traverse, node.elts)
unop = {"Invert": "~", "Not": "not", "UAdd": "+", "USub": "-"}

3
Lib/test/test_unparse.py
View file

@ -648,6 +648,9 @@ def test_star_expr_assign_target(self):
self.check_src_roundtrip(source.format(target=target))
def test_star_expr_assign_target_multiple(self):
self.check_src_roundtrip("() = []")
self.check_src_roundtrip("[] = ()")
self.check_src_roundtrip("() = [a] = c, = [d] = e, f = () = g = h")
self.check_src_roundtrip("a = b = c = d")
self.check_src_roundtrip("a, b = c, d = e, f = g")
self.check_src_roundtrip("[a, b] = [c, d] = [e, f] = g")

1
Misc/NEWS.d/next/Library/2022-05-11-19-33-27.gh-issue-92671.KE4v6a.rst Normal file
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@ -0,0 +1 @@
Fixed :func:`ast.unparse` for empty tuples in the assignment target context.