Let's be explicit with asserts; there was a bug in histogram

[python_utils.git] / collect / shared_dict.py

diff --git a/collect/shared_dict.py b/collect/shared_dict.py
index 7c84c14c073743ea1e452d58393f8f29d280ed23..ac390bc600e769a94c2205440883257a665917bb 100644 (file)
--- a/collect/shared_dict.py
+++ b/collect/shared_dict.py
@@ -74,6 +74,7 @@ class SharedDict(object):
         super().__init__()
         self.name = name
         self._serializer = PickleSerializer()
+        assert size_bytes is None or size_bytes > 0
         self.shared_memory = self._get_or_create_memory_block(name, size_bytes)
         self._ensure_memory_initialization()
         self.lock = RLock()
@@ -89,7 +90,7 @@ class SharedDict(object):
         try:
             return shared_memory.SharedMemory(name=name)
         except FileNotFoundError:
-            assert size_bytes
+            assert size_bytes is not None
             return shared_memory.SharedMemory(name=name, create=True, size=size_bytes)
 
     def _ensure_memory_initialization(self):