Revert "Set values of prefix and exec_prefix to /usr/local for..."

- Prevent build failures of packages using alternate build tools
- This reverts commit 24515db173

python3.spec

@@ -124,7 +124,7 @@
 Summary: Version 3 of the Python programming language aka Python 3000
 Name: python3
 Version: %{pybasever}.0
-Release: 18%{?dist}
+Release: 19%{?dist}
 License: Python
 Group: Development/Languages
 
@@ -410,11 +410,6 @@ Patch249: 00249-fix-out-of-tree-dtrace-builds.patch
 # http://bugs.python.org/issue29157
 Patch250: 00250-getentropy.patch
 
-# 00251
-# Set values of prefix and exec_prefix to /usr/local if executable is
-# /usr/bin/python* to make pip and distutils install into separate location
-Patch251: 00251-set-python3-prefixes.patch
-
 # 00252
 # Add executable option to install.py command to make it work for
 # scripts specified as an entry_points
@@ -481,12 +476,6 @@ Requires: %{name}-libs%{?_isa} = %{version}-%{release}
 Obsoletes: python%{pyshortver}
 Provides: python%{pyshortver} = %{version}-%{release}
 
-%if 0%{?_module_build}
-Requires: system-python = %{version}
-%else
-Requires: system-python = %{version}-%{release}
-%endif
-
 %if 0%{with_rewheel}
 Requires: python3-setuptools
 Requires: python3-pip
@@ -502,7 +491,7 @@ considerably, and a lot of deprecated features have finally been removed.
 Summary:        Python 3 runtime libraries
 Group:          Development/Libraries
 # For Modularity purpose we need not to include the dist-tag int he dependency
-%if 0%{?_module_build}
+%if %(d="%{?dist}"; [ "${d#module-base-runtime-}x" != "${d}x" ] && echo 1 || echo 0)
 Requires:       system-python-libs%{?_isa} = %{version}
 %else
 Requires:       system-python-libs%{?_isa} = %{version}-%{release}
@@ -697,7 +686,6 @@ sed -r -i s/'_PIP_VERSION = "[0-9.]+"'/'_PIP_VERSION = "%{pip_version}"'/ Lib/en
 %patch243 -p1
 %patch249 -p1
 %patch250 -p1
-%patch251 -p1
 %patch252 -p1
 %patch253 -p1
 %patch254 -p1
@@ -1625,6 +1613,11 @@ rm -fr %{buildroot}
 # ======================================================
 
 %changelog
+* Fri Feb 24 2017 Michal Cyprian <mcyprian@redhat.com> - 3.6.0-19
+- Revert "Set values of prefix and exec_prefix to /usr/local for
+  /usr/bin/python* executables..." to prevent build failures
+  of packages using alternate build tools
+
 * Tue Feb 21 2017 Michal Cyprian <mcyprian@redhat.com> - 3.6.0-18
 - Set values of prefix and exec_prefix to /usr/local for
   /usr/bin/python* executables