From 7ac7e1078b0e7b37906f7bbacabd7345a57f5e7a Mon Sep 17 00:00:00 2001
From: arve0 <arve.seljebu@gmail.com>
Date: Sat, 16 May 2015 12:07:11 +0200
Subject: [PATCH] cpu_count may raise NotImplementedError

---
 skimage/util/apply.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/skimage/util/apply.py b/skimage/util/apply.py
index 495be032..a63be1c1 100644
--- a/skimage/util/apply.py
+++ b/skimage/util/apply.py
@@ -80,7 +80,10 @@ def apply_chunks(function, array, chunks=None, depth=0, mode=None,
     """
     if chunks is None:
         shape = array.shape
-        ncpu = cpu_count()
+        try:
+            ncpu = cpu_count()
+        except NotImplementedError:
+            ncpu = 4
         chunks = _get_chunks(shape, ncpu)
 
     if mode == 'wrap':