Try increasing the C recursion limit

Author: markshannon

Include/cpython/pystate.h

@@ -225,7 +225,7 @@ struct _ts {
 #  define Py_C_RECURSION_LIMIT 500
 #else
    // This value is duplicated in Lib/test/support/__init__.py
-#  define Py_C_RECURSION_LIMIT 1500
+#  define Py_C_RECURSION_LIMIT 4500
 #endif
 
 

Lib/test/support/__init__.py

@@ -2382,7 +2382,7 @@ def _get_c_recursion_limit():
         return _testcapi.Py_C_RECURSION_LIMIT
     except (ImportError, AttributeError):
         # Originally taken from Include/cpython/pystate.h .
-        return 1500
+        return 4500
 
 # The default C recursion limit.
 Py_C_RECURSION_LIMIT = _get_c_recursion_limit()