monkeypatch Undefined to show as empty string

spacetelescope · Apr 17, 2024 · f03e333 · f03e333
1 parent 6982333
commit f03e333
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/lcviz/plugins/metadata_viewer/metadata_viewer.py b/lcviz/plugins/metadata_viewer/metadata_viewer.py
@@ -1,9 +1,16 @@
+from astropy.io.fits.card import Undefined
+
 from jdaviz.configs.default.plugins import MetadataViewer
 from jdaviz.core.registries import tray_registry
 
 __all__ = ['MetadataViewer']
 
 
+# monkeypatch astropy.io.fits.card.Undefined to show an empty string
+# instead of '<astropy.io.fits.card.Undefined object at 0x29f5b94d0>'
+Undefined.__str__ = lambda x: ''
+
+
 @tray_registry('lcviz-metadata-viewer', label="Metadata")
 class MetadataViewer(MetadataViewer):
     """