Fix problem with string array device property

PR #101, Issue #100
tango-controls · Mar 1, 2017 · 92c08e7 · 92c08e7
2 parents 95b04b7 + fb93a52
commit 92c08e7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/tango/utils.py b/tango/utils.py
@@ -986,6 +986,8 @@ def obj_2_str(obj, tg_type=None):
             obj = obj[0]
         return str(obj)
     # sequence cases
+    if obj is None:
+        return ''
     return '\n'.join([str(i) for i in obj])