bug fix to handle edge case gracefully

spacetelescope · Dec 18, 2024 · 3a7ae40 · 3a7ae40
1 parent cb6acbf
commit 3a7ae40
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/stpsf/stpsf_core.py b/stpsf/stpsf_core.py
@@ -1380,6 +1380,10 @@ def _get_pupil_mask_alignment(self, lookup_key=None):
             Pupil shifts, expressed in meters. And rotation in degrees.
 
         """
+        if not self.pupil_mask:
+            # if there is no pupil stop mask, these have no effect, so no need to do anything more to find values
+            return 0, 0, None
+
         if not lookup_key:
             lookup_key = self.name + '_' + self.pupil_mask