diff --git a/python-dfdatetime.changes b/python-dfdatetime.changes
index e7001f2..b9133d5 100644
--- a/python-dfdatetime.changes
+++ b/python-dfdatetime.changes
@@ -2,8 +2,12 @@
 Tue Oct  3 16:08:32 UTC 2017 - Greg.Freemyer@gmail.com
 
 - update to v0~20170719
-	* various improvements including new format support and added sanity checks
+	* various improvements including 
+		new format support 
+		added sanity checks
 - implement python singlespec syntax
+- remove the lines that delete *.pyc and *.pyo files, 
+	they no longer cause problems
 
 -------------------------------------------------------------------
 Sat Jul 30 22:27:27 UTC 2016 - jengelh@inai.de
diff --git a/python-dfdatetime.spec b/python-dfdatetime.spec
index 8910084..d803655 100644
--- a/python-dfdatetime.spec
+++ b/python-dfdatetime.spec
@@ -26,11 +26,11 @@ License:        Apache-2.0
 Group:          Development/Languages/Python
 Url:            https://github.com/log2timeline/dfdatetime
 Source:         https://github.com/log2timeline/dfdatetime/releases/download/%{timestamp}/dfdatetime-%{timestamp}.tar.gz
+BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  pkgconfig
 BuildRequires:  python-rpm-macros
-BuildRequires:  pkgconfig(python)
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildArch:      noarch
 %python_subpackages
@@ -42,16 +42,11 @@ dfDateTime, or Digital Forensics date and time, provides date and time objects t
 %setup -q -n dfdatetime-%{timestamp}
 
 %build
-python2 setup.py build
-python3 setup.py build
+%python_build
 
 %install
-python2 setup.py install -O1 --root=%{buildroot}
-python3 setup.py install -O1 --root=%{buildroot}
-#delete all precombied PYO files
-find %{buildroot} -name \*.pyc -delete
-find %{buildroot} -name \*.pyo -delete
-# these are installed into the wrong place
+%python_install
+#these doc files are installed to the wrong place
 rm -rf %{buildroot}/usr/share/doc/dfdatetime
 %fdupes %{buildroot}/%{_prefix}