From 7ad8ea7b11e3544b133d8b397dd3bbe4833d3308 Mon Sep 17 00:00:00 2001
From: Mike Taves <mwtoews@gmail.com>
Date: Thu, 2 Sep 2021 21:32:21 +1200
Subject: MAINT: revise OSError aliases (IOError, EnvironmentError)

---
 numpy/lib/format.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

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

diff --git a/numpy/lib/format.py b/numpy/lib/format.py
index 6ac66c22a..e566e253d 100644
--- a/numpy/lib/format.py
+++ b/numpy/lib/format.py
@@ -162,7 +162,6 @@ evolved with time and this document is more current.
 
 """
 import numpy
-import io
 import warnings
 from numpy.lib.utils import safe_eval
 from numpy.compat import (
@@ -831,7 +830,7 @@ def open_memmap(filename, mode='r+', dtype=None, shape=None,
     ------
     ValueError
         If the data or the mode is invalid.
-    IOError
+    OSError
         If the file is not found or cannot be opened correctly.
 
     See Also
@@ -909,7 +908,7 @@ def _read_bytes(fp, size, error_template="ran out of data"):
             data += r
             if len(r) == 0 or len(data) == size:
                 break
-        except io.BlockingIOError:
+        except BlockingIOError:
             pass
     if len(data) != size:
         msg = "EOF: reading %s, expected %d bytes got %d"
-- 
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