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bpo-37053: handle strings like u"bar" correctly in Tools/parser/unparse.py (GH-13583)

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Constant.kind is added in https://bugs.python.org/issue36280.
Current possible values for Constant.kind are "u" or None.

For r'bar' and b'bar', Constant.kind value is None, so there's no need
for special handling.


https://bugs.python.org/issue37053
This commit is contained in:
Chih-Hsuan Yen 2019-05-27 01:08:20 +08:00 committed by Miss Islington (bot)
parent 91f4380ced
commit aaf47caf35
3 changed files with 8 additions and 0 deletions
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5
Lib/test/test_tools/test_unparse.py
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@ -139,6 +139,11 @@ class UnparseTestCase(ASTTestCase):
self.check_roundtrip(r"""f'{f"{0}"*3}'""") self.check_roundtrip(r"""f'{f"{0}"*3}'""")
self.check_roundtrip(r"""f'{f"{y}"*3}'""") self.check_roundtrip(r"""f'{f"{y}"*3}'""")
def test_strings(self):
self.check_roundtrip("u'foo'")
self.check_roundtrip("r'foo'")
self.check_roundtrip("b'foo'")
def test_del_statement(self): def test_del_statement(self):
self.check_roundtrip("del x, y, z") self.check_roundtrip("del x, y, z")

1
Misc/NEWS.d/next/Tools-Demos/2019-05-26-16-47-06.bpo-37053.-EYRuz.rst Normal file
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@ -0,0 +1 @@
Handle strings like u"bar" correctly in Tools/parser/unparse.py. Patch by Chih-Hsuan Yen.

2
Tools/parser/unparse.py
View File

@ -399,6 +399,8 @@ class Unparser:
elif value is ...: elif value is ...:
self.write("...") self.write("...")
else: else:
if t.kind == "u":
self.write("u")
self._write_constant(t.value) self._write_constant(t.value)
def _List(self, t): def _List(self, t):