Fix resetting path in Dataset.download (#124)

DKISTDC · Jul 5, 2021 · 492762b · 492762b
1 parent 1c3d7dc
commit 492762b
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diff --git a/changelog/124.bugfix.rst b/changelog/124.bugfix.rst
@@ -0,0 +1 @@
+Fix a bug where sometimes the path wouldn't be set correctly after FITS file download.
diff --git a/dkist/io/array_containers.py b/dkist/io/array_containers.py
@@ -70,12 +70,12 @@ def from_external_array_references(cls, ears, **kwargs):
         Construct a collection from a (nested) iterable of
         `asdf.ExternalArrayReference` objects.
         """
-        shape = ears[0].shape
-        dtype = ears[0].dtype
-        target = ears[0].target
+        ear0 = np.array(ears).flat[0]
+        shape = ear0.shape
+        dtype = ear0.dtype
+        target = ear0.target
 
-        for i, ele in enumerate(ears):
-            uris = cls._validate_homogenaity(shape, target, dtype, ears)
+        uris = cls._validate_homogenaity(shape, target, dtype, ears)
 
         return cls(uris, target, dtype, shape, **kwargs)