Last try for tweaking the max stack depth. 5000 was the original value,

4000 didn't work either.  1000 does work on Windows.  If 2000 works,
that will hopefully be a reasonable balance.

Python/marshal.c

@@ -15,7 +15,7 @@
  * and risks coring the interpreter.  When the object stack gets this deep,
  * raise an exception instead of continuing.
  */
-#define MAX_MARSHAL_STACK_DEPTH 1000
+#define MAX_MARSHAL_STACK_DEPTH 2000
 
 #define TYPE_NULL		'0'
 #define TYPE_NONE		'N'