From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Thu, 14 Sep 2017 16:09:16 +0000 (-0400)
Subject: Fix Python bt2: sequence length field may be NULL
X-Git-Tag: v2.0.0-pre4~47
X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=commitdiff_plain;h=7b6af2b9f5c3f509e54ca6eebe975a7562531eb7

Fix Python bt2: sequence length field may be NULL

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

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