Make sure "if <deferred>:" is equivalent to the undeferred case by implementing __non...

diff --git a/src/nepi/util/defer.py b/src/nepi/util/defer.py
index 732d023..a1937b9 100644 (file)
--- a/src/nepi/util/defer.py
+++ b/src/nepi/util/defer.py
@@ -28,3 +28,6 @@ class Defer:
             self.__ojet = self.__ojetwait()
         return self.__ojet
 
+    def __nonzero__(self):
+        return bool(self._get())
+