--- SQLAlchemy-1.2.7/setup.py.orig	2018-04-20 22:27:50.000000000 +0200
+++ SQLAlchemy-1.2.7/setup.py	2018-05-26 11:23:38.674698725 +0200
@@ -81,7 +81,7 @@
     # not working at the time of this comment.
     user_options = [('pytest-args=', 'a', "Arguments to pass to py.test")]
 
-    default_options = ["-n", "4", "-q", "--nomemory"]
+    default_options = ["-q", "--nomemory"]
 
     def initialize_options(self):
         TestCommand.initialize_options(self)
@@ -121,6 +121,13 @@
     readme = r_file.read()
 
 
+def get_mock_dep():
+    try:
+        from unittest import mock
+        return []
+    except ImportError:
+        return ['mock']
+
 def run_setup(with_cext):
     kwargs = {}
     if with_cext:
@@ -139,7 +146,7 @@
         package_dir={'': 'lib'},
         license="MIT License",
         cmdclass=cmdclass,
-        tests_require=['pytest>=2.5.2,!=3.9.1', 'mock', 'pytest-xdist'],
+        tests_require=['pytest>=2.5.2,!=3.9.1', 'pytest-xdist'] + get_mock_dep(),
         long_description=readme,
         classifiers=[
             "Development Status :: 5 - Production/Stable",