commit cfd6c4b18c5f338842d2ee509bfb2d3a3c6f6439
Author: Roman Yurchak <rth.yurchak@pm.me>
Date:   Mon Oct 15 15:40:48 2018 +0200

    Use dummy_threading

diff --git a/scipy/interpolate/tests/test_gil.py b/scipy/interpolate/tests/test_gil.py
index df3ab3bc4..974b68ada 100644
--- a/scipy/interpolate/tests/test_gil.py
+++ b/scipy/interpolate/tests/test_gil.py
@@ -1,7 +1,7 @@
 from __future__ import division, print_function, absolute_import
 
 import itertools
-import threading
+import dummy_threading as threading
 import time
 
 import numpy as np
diff --git a/scipy/ndimage/tests/test_filters.py b/scipy/ndimage/tests/test_filters.py
index 8c56393a6..8ff85547c 100644
--- a/scipy/ndimage/tests/test_filters.py
+++ b/scipy/ndimage/tests/test_filters.py
@@ -129,7 +129,7 @@ def test_gaussian_truncate():
 
 class TestThreading(TestCase):
     def check_func_thread(self, n, fun, args, out):
-        from threading import Thread
+        from dummy_threading import Thread
         thrds = [Thread(target=fun, args=args, kwargs={'output': out[x]}) for x in range(n)]
         [t.start() for t in thrds]
         [t.join() for t in thrds]
diff --git a/scipy/signal/signaltools.py b/scipy/signal/signaltools.py
index df7107684..2b9a18422 100644
--- a/scipy/signal/signaltools.py
+++ b/scipy/signal/signaltools.py
@@ -4,7 +4,7 @@
 from __future__ import division, print_function, absolute_import
 
 import warnings
-import threading
+import dummy_threading as threading
 
 from . import sigtools
 from scipy._lib.six import callable
diff --git a/scipy/sparse/tests/test_sparsetools.py b/scipy/sparse/tests/test_sparsetools.py
index 7a3c903cc..cc495d500 100644
--- a/scipy/sparse/tests/test_sparsetools.py
+++ b/scipy/sparse/tests/test_sparsetools.py
@@ -4,7 +4,7 @@ import sys
 import os
 import gc
 import re
-import threading
+import dummy_threading as threading
 
 from nose import SkipTest
 import numpy as np
diff --git a/scipy/spatial/ckdtree.pyx b/scipy/spatial/ckdtree.pyx
index 2f98613a7..c9f657cf3 100644
--- a/scipy/spatial/ckdtree.pyx
+++ b/scipy/spatial/ckdtree.pyx
@@ -17,8 +17,7 @@ from libc.string cimport memset, memcpy
 
 cimport cython
 
-from multiprocessing import cpu_count
-import threading
+import dummy_threading as threading
 
 cdef extern from "limits.h":
     long LONG_MAX
@@ -26,7 +25,7 @@ cdef extern from "limits.h":
 cdef extern from "ckdtree_methods.h":
     int number_of_processors
     
-number_of_processors = cpu_count()
+number_of_processors = 1
 
 from libcpp.vector cimport vector
 from libc cimport string
@@ -91,7 +90,7 @@ cdef extern from "cpp_utils.h":
 # coo_entry wrapper
 # =================
 
-cdef class coo_entries:
+cdef class coo_entries(object):
 
     cdef: 
         readonly object __array_interface__
diff --git a/scipy/spatial/qhull.pyx b/scipy/spatial/qhull.pyx
index ba33fadbe..644a57eaf 100644
--- a/scipy/spatial/qhull.pyx
+++ b/scipy/spatial/qhull.pyx
@@ -10,7 +10,7 @@ Wrappers for Qhull triangulation, plus some additional N-D geometry utilities
 # Distributed under the same BSD license as Scipy.
 #
 
-import threading
+import dummy_threading as threading
 import numpy as np
 cimport numpy as np
 cimport cython
diff --git a/scipy/special/_ellip_harm.py b/scipy/special/_ellip_harm.py
index 62e50655e..61e9949cc 100644
--- a/scipy/special/_ellip_harm.py
+++ b/scipy/special/_ellip_harm.py
@@ -1,6 +1,6 @@
 from __future__ import division, print_function, absolute_import
 
-import threading
+import dummy_threading as threading
 import numpy as np
 
 from ._ufuncs import _ellip_harm