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-rw-r--r--numpy/core/arrayprint.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/numpy/core/arrayprint.py b/numpy/core/arrayprint.py
index e4be810b9..e4a048a42 100644
--- a/numpy/core/arrayprint.py
+++ b/numpy/core/arrayprint.py
@@ -427,12 +427,14 @@ def _recursive_guard(fillvalue='...'):
# gracefully handle recursive calls, when object arrays contain themselves
@_recursive_guard()
def _array2string(a, options, separator=' ', prefix=""):
+ # The formatter __init__s cannot deal with subclasses yet
+ data = asarray(a)
+
if a.size > options['threshold']:
summary_insert = "..."
- data = _leading_trailing(a)
+ data = _leading_trailing(data)
else:
summary_insert = ""
- data = asarray(a)
# find the right formatting function for the array
format_function = _get_format_function(data, **options)