05-st_mode.patch

--- native/Modules/posixmodule.c	2022-08-05 07:45:18.000000000 -0700
+++ wasm/Modules/posixmodule.c	2022-09-07 09:53:36.000000000 -0700
@@ -2391,8 +2391,12 @@
     PyObject *v = PyStructSequence_New((PyTypeObject *)StatResultType);
     if (v == NULL)
         return NULL;
-
-    PyStructSequence_SET_ITEM(v, 0, PyLong_FromLong((long)st->st_mode));
+    // On WASM we modify st_mode to include u+rwx, since WASI provides nothing
+    // but "is it a directory or not" in st_mode, and this breaks a lot of things
+    // horribly, e.g., the entire zipfile module.  For now the best solution is
+    // this patch.  This will change -- see
+    //      https://github.com/WebAssembly/wasi-filesystem/issues/34
+    PyStructSequence_SET_ITEM(v, 0, PyLong_FromLong((long)st->st_mode | 448));
     static_assert(sizeof(unsigned long long) >= sizeof(st->st_ino),
                   "stat.st_ino is larger than unsigned long long");
     PyStructSequence_SET_ITEM(v, 1, PyLong_FromUnsignedLongLong(st->st_ino));