Fix mask comparison

astropy · Nov 30, 2022 · 4d97ebd · 4d97ebd
1 parent 9e08b79
commit 4d97ebd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/specreduce/core.py b/specreduce/core.py
@@ -64,7 +64,7 @@ def _parse_image(self, image, disp_axis=1):
             mask = image.mask
         else:
             mask = np.ma.masked_invalid(img).mask
-            if not mask:  # Could be False
+            if mask is False:  # Could be False
                 mask = None
 
         if getattr(image, 'uncertainty', None) is not None: