diff --git a/.gitignore b/.gitignore
index d010631..d1d1ac6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@
 /qgis-2.18.9.tar.bz2
 /qgis-2.18.10.tar.bz2
 /qgis-2.18.11.tar.bz2
+/qgis-2.18.12.tar.bz2
diff --git a/qgis-2.18.12-pyobject-redefined.patch b/qgis-2.18.12-pyobject-redefined.patch
new file mode 100644
index 0000000..dca2446
--- /dev/null
+++ b/qgis-2.18.12-pyobject-redefined.patch
@@ -0,0 +1,18 @@
+commit 91171370514b558ea7f0ae34af7503ddb31d68e6
+Author: Juergen E. Fischer <jef@norbit.de>
+Date:   Sun Aug 20 10:51:52 2017 +0200
+
+    remove sip workaround (fixes #17038, refs #16071)
+
+diff --git a/python/core/qgscoordinatetransform.sip b/python/core/qgscoordinatetransform.sip
+index f9b7854..464952d 100644
+--- a/python/core/qgscoordinatetransform.sip
++++ b/python/core/qgscoordinatetransform.sip
+@@ -15,7 +15,6 @@
+ class QgsCoordinateTransform : QObject
+ {
+ %TypeHeaderCode
+-extern PyObject *sipExportedExceptions__core[2];  // workaround: sipExportedExceptions__core is only defined in the first sip part
+ #include <qgscoordinatetransform.h>
+ %End
+ 
diff --git a/qgis.spec b/qgis.spec
index 904052c..7b16a68 100644
--- a/qgis.spec
+++ b/qgis.spec
@@ -11,14 +11,10 @@
 %endif
 %endif
 
-%if 0%{?fedora} >= 24
-%global configure_with_grass7 -D WITH_GRASS7:BOOL=TRUE
-%endif
-
 #TODO: Run test suite (see debian/rules)
 
 Name:           qgis
-Version:        2.18.11
+Version:        2.18.12
 Release:        1%{?dist}
 Summary:        A user friendly Open Source Geographic Information System
 Group:          Applications/Engineering
@@ -42,6 +38,7 @@ Source5:        %{name}-mime.xml
 # https://hub.qgis.org/issues/15602
 # https://github.com/qgis/QGIS/commit/718581ffb12b723f9a3c0ae01b7ec2d8aed9d4bb.patch
 Patch0:         %{name}-lib64.patch
+Patch1:         %{name}-2.18.12-pyobject-redefined.patch
 
 # Some plug-ins need Pyspatialite (bundled)
 # The license is not totally clear, see:
@@ -148,7 +145,12 @@ Requires:       grass%{?_isa} = %{grass_version}
 %description grass
 GRASS plugin for QGIS required to interface with the GRASS system.
 
-%package python
+%package -n python2-qgis
+%{?python_provide:%python_provide python2-qgis}
+# Remove before F30
+Provides: %{name}-python = %{version}-%{release}
+Provides: %{name}-python%{?_isa} = %{version}-%{release}
+Obsoletes: %{name}-python < %{version}-%{release}
 Summary:        Python integration and plug-ins for QGIS
 Group:          Applications/Engineering
 Requires:       %{name}%{?_isa} = %{version}-%{release}
@@ -165,7 +167,7 @@ Requires:       PyYAML
 Requires:       qscintilla-python
 %{?_sip_api:Requires: sip-api(%{_sip_api_major}) >= %{_sip_api}}
 
-%description python
+%description -n python2-qgis
 Python integration and plug-ins for QGIS.
 
 %package server
@@ -188,6 +190,13 @@ Please refer to %{name}-server-README.fedora for details!
 %setup -q
 %patch0 -p1 -b .lib64
 
+%if 0%{?fedora} > 26
+# Solve "error: conflicting declaration 'PyObject* sipExportedExceptions__core [3]'"
+# https://issues.qgis.org/projects/qgis/repository/revisions/91171370514b558ea7f0ae34af7503ddb31d68e6
+# https://issues.qgis.org/projects/qgis/repository/revisions/91171370514b558ea7f0ae34af7503ddb31d68e6/diff/python/core/qgscoordinatetransform.sip?format=diff
+%patch1 -p1 -b .pyobject
+%endif
+
 # Remove executable permissions from source code files
 find . \( -name "*.cpp" -o -name "*.h" \) -type f -perm /111 -execdir chmod -x {} \+
 
@@ -221,7 +230,7 @@ gzip ChangeLog
       -D QGIS_CGIBIN_SUBDIR=%{_libexecdir}/%{name} \
       -D WITH_BINDINGS:BOOL=TRUE \
       -D WITH_GRASS:BOOL=TRUE \
-      %{configure_with_grass7} \
+      -D WITH_GRASS7:BOOL=TRUE \
       -D GRASS_PREFIX=%{_libdir}/grass \
       -D WITH_CUSTOM_WIDGETS:BOOL=TRUE \
       -D BINDINGS_GLOBAL_INSTALL:BOOL=TRUE \
@@ -342,9 +351,9 @@ update-mime-database %{?fedora:-n} %{_datadir}/mime &> /dev/null || :
 
 %postun grass -p /sbin/ldconfig
 
-%post python -p /sbin/ldconfig
+%post -n python2-qgis -p /sbin/ldconfig
 
-%postun python -p /sbin/ldconfig
+%postun -n python2-qgis -p /sbin/ldconfig
 
 %files -f %{name}.lang
 %doc BUGS NEWS Exception_to_GPL_for_Qt.txt ChangeLog.gz
@@ -394,7 +403,7 @@ update-mime-database %{?fedora:-n} %{_datadir}/mime &> /dev/null || :
 %{_libdir}/%{name}/grass/
 %{_datadir}/%{name}/grass/
 
-%files python
+%files -n python2-qgis
 %{_libdir}/libqgispython.so.*
 %{_datadir}/%{name}/python/
 %{python_sitearch}/%{name}/
@@ -412,6 +421,16 @@ update-mime-database %{?fedora:-n} %{_datadir}/mime &> /dev/null || :
 
 
 %changelog
+* Mon Aug 28 2017 Daniele Viganò <daniele@vigano.me> - 2.18.12-1
+- New upstream release
+
+* Tue Aug 22 2017 Volker Froehlich <volker27@gmx.at> - 2.18.12-1
+- Add patch to solve SIP-4.19-related build failure
+
+* Sat Aug 19 2017 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 2.18.11-4
+- Python 2 binary package renamed to python2-qgis
+  See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3
+
 * Tue Jul 25 2017 Daniele Viganò <daniele@vigano.me> - 2.18.11-1
 - New upstream release
 
diff --git a/sources b/sources
index 8e724a5..ef85b44 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (qgis-2.18.11.tar.bz2) = 5100904912bbc9886e71cabfb70306e1e6a501d22da583df919211332b18f05cee5b5e3ca225976493ab03270d26d9de9e1050eeb140386df36c7e9f69f01ac0
+SHA512 (qgis-2.18.12.tar.bz2) = e34dd98d0d0aa5fdf1f980dbc1376c25a9a7ffaa59b1a2eba8423e7f44bc039b547f3f65368178a8c485fa34526dd9fece2e09d9372fed3b9a758f7286b690ea