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bpo-38641: Add lib2to3 support for starred expressions in return/yield statements (GH-16994)

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Vlad Emelianov 2020-03-01 20:59:26 +01:00 • committed by GitHub
parent 0b0d29fce5
commit 768d739c1c
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4 changed files with 18 additions and 3 deletions
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14
Lib/lib2to3/tests/data/py3_test_grammar.py
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@ -473,15 +473,27 @@ class GrammarTests(unittest.TestCase):
test_inner()
def testReturn(self):
# 'return' [testlist]
# 'return' [testlist_star_expr]
def g1(): return
def g2(): return 1
return_list = [2, 3]
def g3(): return 1, *return_list
g1()
x = g2()
x3 = g3()
check_syntax_error(self, "class foo:return 1")
def testYield(self):
# 'yield' [yield_arg]
def g1(): yield 1
yield_list = [2, 3]
def g2(): yield 1, *yield_list
def g3(): yield from iter(yield_list)
x1 = g1()
x2 = g2()
x3 = g3()
check_syntax_error(self, "class foo:yield 1")
check_syntax_error(self, "def g4(): yield from *a")
def testRaise(self):
# 'raise' test [',' test]