From 7b6af2b9f5c3f509e54ca6eebe975a7562531eb7 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=A9mie=20Galarneau?=
 <jeremie.galarneau@efficios.com>
Date: Thu, 14 Sep 2017 12:09:16 -0400
Subject: [PATCH] Fix Python bt2: sequence length field may be NULL
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Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---
 bindings/python/bt2/bt2/fields.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/bindings/python/bt2/bt2/fields.py b/bindings/python/bt2/bt2/fields.py
index afa02d5d..86323686 100644
--- a/bindings/python/bt2/bt2/fields.py
+++ b/bindings/python/bt2/bt2/fields.py
@@ -654,12 +654,13 @@ class _SequenceField(_ArraySequenceField):
     _NAME = 'Sequence'
 
     def _count(self):
-        return self.length_field.value
+        return int(self.length_field)
 
     @property
     def length_field(self):
         field_ptr = native_bt.ctf_field_sequence_get_length(self._ptr)
-        utils._handle_ptr("cannot get sequence field object's length field")
+        if field_ptr is None:
+            return
         return _create_from_ptr(field_ptr)
 
     @length_field.setter
-- 
2.34.1