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gh-93345: Fix a crash in substitution of nested TypeVar after TypeVarTuple (GH-93346)

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For example: tuple[*Ts, list[T]][int, str, bool]
(cherry picked from commit f545fc955a)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2022-05-31 23:43:38 -07:00 • committed by GitHub
parent 00f8fe9564
commit 3265ff9ccc
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3 changed files with 10 additions and 2 deletions
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Objects/genericaliasobject.c
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@ -296,7 +296,7 @@ subs_tvars(PyObject *obj, PyObject *params,
else {
if (iparam >= 0) {
if (iparam > varparam) {
iparam += nargs - nsubargs;
iparam += nargs - nparams;
}
arg = argitems[iparam];
}