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gh-94949: Disallow parsing parenthesised ctx mgr with old feature_version (#94950)

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* gh-94949: Disallow parsing parenthesised ctx manager with old feature_version

* 📜🤖 Added by blurb_it.

* Allow it with feature_version=(3, 9) as well

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
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Shantanu 2022-07-18 14:10:49 -07:00 • committed by GitHub
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commit 0daba82221
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4 changed files with 11 additions and 2 deletions
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@ -391,7 +391,7 @@ for_stmt[stmt_ty]:
with_stmt[stmt_ty]:
| invalid_with_stmt_indent
| 'with' '(' a[asdl_withitem_seq*]=','.with_item+ ','? ')' ':' b=block {
_PyAST_With(a, b, NULL, EXTRA) }
CHECK_VERSION(stmt_ty, 9, "Parenthesized context managers are", _PyAST_With(a, b, NULL, EXTRA)) }
| 'with' a[asdl_withitem_seq*]=','.with_item+ ':' tc=[TYPE_COMMENT] b=block {
_PyAST_With(a, b, NEW_TYPE_COMMENT(p, tc), EXTRA) }
| ASYNC 'with' '(' a[asdl_withitem_seq*]=','.with_item+ ','? ')' ':' b=block {