Only assert if input array actually has a size

2022-05-03 13:51:29 -04:00 · 2022-05-03 13:51:29 -04:00 · b3f9c4f93d
parent 09431aad85
commit b3f9c4f93d
1 changed files with 1 additions and 1 deletions
--- a/piker/data/_sharedmem.py
+++ b/piker/data/_sharedmem.py
@ -351,7 +351,7 @@ class ShmArray:
            # tries to access ``.array`` (which due to the index
            # overlap will be empty). Pretty sure we've fixed it now
            # but leaving this here as a reminder.
-            if prepend and update_first:
+            if prepend and update_first and length:
                assert index < self._first.value

            if (