From 4b2e5d2f4c2d8a873d2a642ce6a4271f87a4333e Mon Sep 17 00:00:00 2001
From: Krasimir Angelov <kr.angelov@gmail.com>
Date: Mon, 24 Oct 2022 10:42:11 +0200
Subject: [PATCH] guard for missing linearization

---
 src/runtime/python/pypgf.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/runtime/python/pypgf.c b/src/runtime/python/pypgf.c
index 52a9c59db..962c23459 100644
--- a/src/runtime/python/pypgf.c
+++ b/src/runtime/python/pypgf.c
@@ -70,6 +70,10 @@ Concr_linearize(ConcrObject* self, PyObject *args)
         return NULL;
 	}
 
+    if (text == NULL) {
+        Py_RETURN_NONE;
+    }
+
 	PyObject* pystr = PyUnicode_FromStringAndSize(text->text, text->size);
 
 	free(text);