From 003bdc25b75566de64a90e223338b4bd4565155a Mon Sep 17 00:00:00 2001
From: Eric Wieser <wieser.eric@gmail.com>
Date: Sun, 18 Aug 2019 20:59:42 -0500
Subject: BUG: Fix flatten_dtype so that nested 0-field structs are flattened
 correctly

This affects the behavior of merge_arrays.
---
 numpy/lib/recfunctions.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'numpy/lib/recfunctions.py')

diff --git a/numpy/lib/recfunctions.py b/numpy/lib/recfunctions.py
index 40060b41a..024ba763f 100644
--- a/numpy/lib/recfunctions.py
+++ b/numpy/lib/recfunctions.py
@@ -200,7 +200,7 @@ def flatten_descr(ndtype):
         descr = []
         for field in names:
             (typ, _) = ndtype.fields[field]
-            if typ.names:
+            if typ.names is not None:
                 descr.extend(flatten_descr(typ))
             else:
                 descr.append((field, typ))
-- 
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