Switch to setuptools

diff --git a/setup.py b/setup.py
index 257889b..a7d10e2 100755 (executable)
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with LinPy.  If not, see <http://www.gnu.org/licenses/>.
 
-from distutils.core import setup, Extension
+from setuptools import setup, Extension
 
 
 with open('linpy/_version.py') as file: