Raise error if user slices with ellipsis.

sunpy · Dec 16, 2019 · dce8a38 · dce8a38
1 parent 37d2db2
commit dce8a38
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diff --git a/changelog/224.bugfix.rst b/changelog/224.bugfix.rst
@@ -0,0 +1 @@
+Raises error if NDCube is sliced with an Ellipsis.
diff --git a/ndcube/utils/wcs.py b/ndcube/utils/wcs.py
@@ -183,6 +183,10 @@ def _wcs_slicer(wcs, missing_axes, item):
         new_wcs = wcs.slice(item_checked)
     # if it a tuple like [0:2, 0:3, 2] or [0:2, 1:3]
     elif isinstance(item, tuple):
+        # Ellipsis slicing is currently not supported.
+        # Raise an error if user tries to slice by ellipsis.
+        if type(Ellipsis) in [type(item_i) for item_i in item]:
+            raise NotImplementedError("Slicing FITS-WCS by ellipsis not supported.")
         # this is used to not exceed the range of the item tuple
         # if the check of the missing_axes which is False if not dead
         # is a success than the the item of the tuple is added one by
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Raises error if NDCube is sliced with an Ellipsis.