From 72fe79fbd3233889428d501d5b0885ba4f962673 Mon Sep 17 00:00:00 2001
From: kc611 <ckaustubhm06@gmail.com>
Date: Tue, 1 Sep 2020 18:40:35 +0530
Subject: [PATCH] Closes Issue #17046

---
 numpy/ma/core.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/numpy/ma/core.py b/numpy/ma/core.py
index b5371f51a6bc..0fdb779eb0e9 100644
--- a/numpy/ma/core.py
+++ b/numpy/ma/core.py
@@ -2844,7 +2844,8 @@ def __new__(cls, data=None, mask=nomask, dtype=None, copy=False,
         # Process mask.
         # Type of the mask
         mdtype = make_mask_descr(_data.dtype)
-
+        # Set mask as False if it is None for performance improvement.
+        if mask is None: mask = False
         if mask is nomask:
             # Case 1. : no mask in input.
             # Erase the current mask ?