Merge pull request #1035 from compas-dev/fix-colordict

Unused defaultdict is considered empty

Author: tomvanmele

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Fixed removing of collections for `compas_plotters`.
 * Fixed bug in `compas.robots.Configuration`.
 * Rebuild part index after deserialization in `Assembly`.
+* Fixed bug in `compas.artists.colordict.ColorDict`.
 
 ### Removed
 

src/compas/artists/colordict.py

@@ -79,7 +79,10 @@ def __get__(self, obj, otype=None):
 
         """
         default = getattr(obj, self.default_name)
-        return getattr(obj, self.private_name) or defaultdict(lambda: default)
+        d = getattr(obj, self.private_name)
+        if d is not None:
+            return d
+        return defaultdict(lambda: default)
 
     def __set__(self, obj, value):
         """Set a new value for the descriptor.