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gh-132775: Do Not Set __name__ to __main__ With _PyPickle_GetXIData() #133472

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Merged
ericsnowcurrently merged 1 commit into from
May 5, 2025
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gh-132775: Do Not Set __name__ to __main__ With _PyPickle_GetXIData() #133472

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Do not set __name__ to __main__.
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@ericsnowcurrently
ericsnowcurrently committed May 5, 2025
commit 817b41cae88ba0127ba3b07a322b7ab38c4ebcd4
5 changes: 4 additions & 1 deletion Python/crossinterp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -512,9 +512,12 @@ _unpickle_context_set_module(struct _unpickle_context *ctx,
struct sync_module_result res = {0};
struct sync_module_result *cached = NULL;
const char *filename = NULL;
const char *run_modname = modname;
if (strcmp(modname, "__main__") == 0) {
cached = &ctx->main.cached;
filename = ctx->main.filename;
// We don't want to trigger "if __name__ == '__main__':".
run_modname = "<fake __main__>";
}
else {
res.failed = PyExc_NotImplementedError;
Expand All @@ -533,7 +536,7 @@ _unpickle_context_set_module(struct _unpickle_context *ctx,
res.failed = PyExc_NotImplementedError;
goto finally;
}
res.loaded = runpy_run_path(filename, modname);
res.loaded = runpy_run_path(filename, run_modname);
if (res.loaded == NULL) {
Py_CLEAR(res.module);
res.failed = _PyErr_GetRaisedException(ctx->tstate);
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