diff --git a/boost-toolfile.spec b/boost-toolfile.spec
index dad30f3cb38..4a14bedd26e 100644
--- a/boost-toolfile.spec
+++ b/boost-toolfile.spec
@@ -154,6 +154,5 @@ export BOOST_REGEX_LIB=`getLibName regex`
 export BOOST_SERIALIZATION_LIB=`getLibName serialization`
 export BOOST_IOSTREAMS_LIB=`getLibName iostream`
 export BOOST_MPI_LIB=`getLibName mpi`
-export PYTHONV=$(echo $PYTHON_VERSION | cut -f1,2 -d.)
 
 ## IMPORT scram-tools-post
diff --git a/coral-tool-conf.spec b/coral-tool-conf.spec
index a1164f5db60..3aac1c35c68 100644
--- a/coral-tool-conf.spec
+++ b/coral-tool-conf.spec
@@ -2,7 +2,7 @@
 ## NOCOMPILER
 
 Requires: pcre-toolfile
-Requires: python-toolfile
+Requires: python3-toolfile
 Requires: expat-toolfile
 Requires: boost-toolfile
 Requires: frontier_client-toolfile
diff --git a/coral-toolfile.spec b/coral-toolfile.spec
index d3101ab96cf..cc68b60b533 100644
--- a/coral-toolfile.spec
+++ b/coral-toolfile.spec
@@ -1,4 +1,4 @@
-### RPM external coral-toolfile 1.0
+### RPM external coral-toolfile 2.0
 Requires: coral
 %prep
 
@@ -14,8 +14,8 @@ cat << \EOF_TOOLFILE >%i/etc/scram.d/coral.xml
     <environment name="LIBDIR" default="$CORAL_BASE/$SCRAM_ARCH/lib"/>
     <environment name="INCLUDE" default="$CORAL_BASE/include/LCG"/>
   </client>
-  <runtime name="PYTHON27PATH" default="$CORAL_BASE/$SCRAM_ARCH/python" type="path"/>
-  <runtime name="PYTHON27PATH" default="$CORAL_BASE/$SCRAM_ARCH/lib" type="path"/>
+  <runtime name="PYTHON3PATH" default="$CORAL_BASE/$SCRAM_ARCH/python" type="path"/>
+  <runtime name="PYTHON3PATH" default="$CORAL_BASE/$SCRAM_ARCH/lib" type="path"/>
   <runtime name="ROOT_INCLUDE_PATH" value="$INCLUDE" type="path"/>
   <use name="root_cxxdefaults"/>
 </tool>
diff --git a/coral.spec b/coral.spec
index 153b353fde3..90b7747d394 100644
--- a/coral.spec
+++ b/coral.spec
@@ -1,6 +1,6 @@
 ### RPM cms coral CORAL_2_3_21
-%define tag 03471dd59bed93d6e20ad6c4b6258d3f65821066
-%define branch cms/%{realversion}
+%define tag c5ddd97499d6a76f24cba6800e5cb88887764bcb
+%define branch cms/%{realversion}py3
 %define github_user cms-externals
 
 Patch0: coral-2_3_20-macosx
diff --git a/cuda.spec b/cuda.spec
index f330a9ad423..982cacf0269 100644
--- a/cuda.spec
+++ b/cuda.spec
@@ -12,7 +12,7 @@ Source0: https://developer.download.nvidia.com/compute/cuda/%{realversion}/local
 %ifarch aarch64
 Source0: https://developer.download.nvidia.com/compute/cuda/%{realversion}/local_installers/%{n}_%{realversion}_%{driversversion}_linux_sbsa.run
 %endif
-Requires: python
+Requires: python3
 AutoReq: no
 
 %prep
@@ -72,7 +72,7 @@ mv %_builddir/build/share/ %{i}/
 mv %{i}/bin/cuda-gdb %{i}/bin/cuda-gdb.real
 cat > %{i}/bin/cuda-gdb << @EOF
 #! /bin/bash
-export PYTHONHOME=$PYTHON_ROOT
+export PYTHONHOME=$PYTHON3_ROOT
 exec %{i}/bin/cuda-gdb.real "\$@"
 @EOF
 chmod a+x %{i}/bin/cuda-gdb
diff --git a/fastjet-toolfile.spec b/fastjet-toolfile.spec
index 2568c687d8f..2755dc541be 100644
--- a/fastjet-toolfile.spec
+++ b/fastjet-toolfile.spec
@@ -30,7 +30,6 @@ done
 cat << \EOF_TOOLFILE >>%i/etc/scram.d/%{base_package}.xml
     </client>
     <runtime name="ROOT_INCLUDE_PATH" value="$INCLUDE" type="path"/>
-    <runtime name="PYTHON3PATH" value="$FASTJET_BASE/lib/python%{cms_python3_major_minor_version}/site-packages" type="path"/>
     <use name="root_cxxdefaults"/>
   </tool>
 EOF_TOOLFILE
diff --git a/fastjet.spec b/fastjet.spec
index bad10722163..38811795e35 100644
--- a/fastjet.spec
+++ b/fastjet.spec
@@ -1,5 +1,5 @@
 ### RPM external fastjet 3.4.0-beta
-## INITENV +PATH PYTHON27PATH %{i}/${PYTHON_LIB_SITE_PACKAGES}
+## INITENV +PATH PYTHON3PATH %{i}/${PYTHON3_LIB_SITE_PACKAGES}
 ## INCLUDE compilation_flags
 
 BuildRequires: autotools
diff --git a/frontier_client.spec b/frontier_client.spec
index ec1e7f38cef..2ec030a72eb 100644
--- a/frontier_client.spec
+++ b/frontier_client.spec
@@ -1,5 +1,4 @@
 ### RPM external frontier_client 2.9.1
-## INITENV +PATH PYTHON27PATH %{i}/python/lib
 ## INITENV +PATH PYTHON3PATH %{i}/python/lib
 
 %define tag 888a611d4ab15d6ce03830c63b850539460dcda9
diff --git a/gosam-toolfile.spec b/gosam-toolfile.spec
index 7f205621f17..98f900bad9c 100644
--- a/gosam-toolfile.spec
+++ b/gosam-toolfile.spec
@@ -17,6 +17,4 @@ cat << \EOF_TOOLFILE >%i/etc/scram.d/gosam.xml
 </tool>
 EOF_TOOLFILE
 
-export PYTHONV=$(echo $PYTHON_VERSION | cut -f1,2 -d.)
-
 ## IMPORT scram-tools-post
diff --git a/llvm-gcc-toolfile.spec b/llvm-gcc-toolfile.spec
index 703a1478161..71cd8ebbd62 100644
--- a/llvm-gcc-toolfile.spec
+++ b/llvm-gcc-toolfile.spec
@@ -145,7 +145,6 @@ cat << \EOF_TOOLFILE >%i/etc/scram.d/pyclang.xml
   <use name="python"/>
 </tool>
 EOF_TOOLFILE
-export PYTHONV=$(echo $PYTHON_VERSION | cut -f1,2 -d.)
 
 # NON-empty defaults
 # First of all handle OS specific options.
diff --git a/llvm.spec b/llvm.spec
index 4f77a6cdbba..167f8039d3e 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -1,6 +1,6 @@
 ### RPM external llvm 12.0.0
 ## INITENV +PATH LD_LIBRARY_PATH %{i}/lib64
-## INITENV +PATH PYTHON3PATH %{i}/lib64/python`echo $PYTHON3_VERSION | cut -d. -f 1,2`/site-packages
+## INITENV +PATH PYTHON3PATH %{i}/lib64/python%{cms_python3_major_minor_version}/site-packages
 
 BuildRequires: cmake ninja
 Requires: gcc zlib python3
@@ -62,7 +62,7 @@ bin/clang-tidy --checks=* --list-checks | grep cms-handle
 cd ../build
 ninja -v %{makeprocesses} install
 
-BINDINGS_PATH=%{i}/lib64/python$(echo $PYTHON3_VERSION | cut -d. -f 1,2)/site-packages
+BINDINGS_PATH=%{i}/lib64/python%{cms_python3_major_minor_version}/site-packages
 mkdir -p $BINDINGS_PATH
 cp -r %{_builddir}/llvm-%{realversion}-%{llvmCommit}/clang/bindings/python/clang $BINDINGS_PATH
 
diff --git a/pip/python-ldap.file b/pip/python-ldap.file
index adc074d3e79..bde6b448ab1 100644
--- a/pip/python-ldap.file
+++ b/pip/python-ldap.file
@@ -1,2 +1,2 @@
-Requires: python openldap py3-pyasn1-modules
-%define PipBuildOptions --global-option=build_ext --global-option="-L${PYTHON_ROOT}/lib" --global-option="-L${OPENLDAP_ROOT}/lib" --global-option="-I${PYTHON_ROOT}/include" --global-option="-I${OPENLDAP_ROOT}/include"  --global-option="-UHAVE_SASL"
+Requires: openldap py3-pyasn1-modules
+%define PipBuildOptions --global-option=build_ext --global-option="-L${PYTHON3_ROOT}/lib" --global-option="-L${OPENLDAP_ROOT}/lib" --global-option="-I${PYTHON3_ROOT}/include" --global-option="-I${OPENLDAP_ROOT}/include"  --global-option="-UHAVE_SASL"
diff --git a/professor2-toolfile.spec b/professor2-toolfile.spec
index 23b472786f7..eea1e0b852b 100644
--- a/professor2-toolfile.spec
+++ b/professor2-toolfile.spec
@@ -21,6 +21,4 @@ cat << \EOF_TOOLFILE >%i/etc/scram.d/professor2.xml
 </tool>
 EOF_TOOLFILE
 
-export PYTHONV=$(echo $PYTHON_VERSION | cut -f1,2 -d.)
-
 ## IMPORT scram-tools-post
diff --git a/professor2.spec b/professor2.spec
index ab75e8594b9..fa2407cd8c4 100644
--- a/professor2.spec
+++ b/professor2.spec
@@ -1,5 +1,5 @@
 ### RPM external professor2 2.3.2
-## INITENV +PATH PYTHON27PATH %i/lib/python`echo $PYTHON_VERSION | cut -d. -f 1,2`/site-packages
+## INITENV +PATH PYTHON3PATH %i/lib/python%{cms_python3_major_minor_version}/site-packages
 
 Source: http://www.hepforge.org/archive/professor/Professor-%{realversion}.tar.gz
 Requires: py3-matplotlib root yoda eigen
@@ -14,11 +14,13 @@ Patch0: professor2-ppc64-flag-change
 %patch0 -p1
 %endif
 
+%define build_flags CPPFLAGS=-I${EIGEN_ROOT}/include/eigen3 PYTHON=$(which python3)
+
 %build
-make CPPFLAGS=-I${EIGEN_ROOT}/include/eigen3
+make %{build_flags}
 
 %install
-make install PREFIX=%{i}
+make install PREFIX=%{i} %{build_flags}
 
-find %{i} -type f -exec sed -ideleteme '1 { s|^#!.*/bin/python|#!/usr/bin/env python| }' {} \;
+find %{i} -type f -exec sed -ideleteme '1 { s|^#!.*/bin/python.*|#!/usr/bin/env python3| }' {} \;
 find %{i} -name '*deleteme' -delete
diff --git a/python-toolfile.spec b/python-toolfile.spec
index c247741517f..b0b6df64b18 100644
--- a/python-toolfile.spec
+++ b/python-toolfile.spec
@@ -13,8 +13,8 @@ cat << \EOF_TOOLFILE >%i/etc/scram.d/python.xml
   <client>
     <environment name="PYTHON_BASE" default="@TOOL_ROOT@"/>
     <environment name="LIBDIR" default="$PYTHON_BASE/lib"/>
-    <environment name="INCLUDE" default="$PYTHON_BASE/include/python@PYTHONV@"/>
-    <environment name="PYTHON_COMPILE" default="$PYTHON_BASE/lib/python@PYTHONV@/compileall.py"/>
+    <environment name="INCLUDE" default="$PYTHON_BASE/include/python%{cms_python2_major_minor_version}"/>
+    <environment name="PYTHON_COMPILE" default="$PYTHON_BASE/lib/python%{cms_python2_major_minor_version}/compileall.py"/>
   </client>
   <runtime name="PATH" value="$PYTHON_BASE/bin" type="path"/>
   <runtime name="ROOT_INCLUDE_PATH" value="$INCLUDE" type="path"/>
diff --git a/python3-toolfile.spec b/python3-toolfile.spec
index 41a918de273..8e926d7f722 100644
--- a/python3-toolfile.spec
+++ b/python3-toolfile.spec
@@ -13,18 +13,14 @@ cat << \EOF_TOOLFILE >%i/etc/scram.d/python3.xml
   <client>
     <environment name="PYTHON3_BASE" default="@TOOL_ROOT@"/>
     <environment name="LIBDIR" default="$PYTHON3_BASE/lib"/>
-    <environment name="INCLUDE" default="$PYTHON3_BASE/include/python@PYTHON3V@"/>
-    <environment name="PYTHON3_COMPILE" default="$PYTHON3_BASE/lib/python@PYTHON3V@/compileall.py"/>
+    <environment name="INCLUDE" default="$PYTHON3_BASE/include/python%{cms_python3_major_minor_version}"/>
+    <environment name="PYTHON3_COMPILE" default="$PYTHON3_BASE/lib/python%{cms_python3_major_minor_version}/compileall.py"/>
   </client>
   <runtime name="PATH" value="$PYTHON3_BASE/bin" type="path"/>
   <use name="sockets"/>
 </tool>
 EOF_TOOLFILE
 
-
-#  <runtime name="ROOT_INCLUDE_PATH" value="$INCLUDE" type="path"/>
-#  <use name="root_cxxdefaults"/>
-
 export PYTHON3V=$(echo $PYTHON3_VERSION | cut -f1,2 -d.)
 
 ## IMPORT scram-tools-post
diff --git a/python_tools.spec b/python_tools.spec
index d4fc7f0b7a4..4dbcc148016 100644
--- a/python_tools.spec
+++ b/python_tools.spec
@@ -4,6 +4,7 @@
 Source: none
 
 Requires: root curl python python3 xrootd llvm hdf5 mxnet-predict yoda opencv
+Requires: professor2 rivet frontier_client onnxruntime
 
 #needed for cmssw until python2-> python3 switch of framework
 Requires: py2-configparser
@@ -218,7 +219,6 @@ Requires: py3-smmap
 Requires: py3-zipp
 
 Requires: py3-pycuda
-Requires: onnxruntime
 
 Requires: py3-boost-histogram
 Requires: py3-hist
diff --git a/rivet-toolfile.spec b/rivet-toolfile.spec
index 09f34930d13..9ae7797fce3 100644
--- a/rivet-toolfile.spec
+++ b/rivet-toolfile.spec
@@ -38,8 +38,6 @@ cat << \EOF_TOOLFILE >>%i/etc/scram.d/rivet.xml
 </tool>
 EOF_TOOLFILE
 
-export PYTHONV=$(echo $PYTHON_VERSION | cut -f1,2 -d.)
-
 ## IMPORT scram-tools-post
 
 
diff --git a/rivet.spec b/rivet.spec
index eb2dad954da..193fb6a050d 100644
--- a/rivet.spec
+++ b/rivet.spec
@@ -1,5 +1,4 @@
 ### RPM external rivet 3.1.4
-## INITENV +PATH PYTHON27PATH %{i}/${PYTHON_LIB_SITE_PACKAGES}
 ## INITENV +PATH PYTHON3PATH %{i}/${PYTHON3_LIB_SITE_PACKAGES}
 ## OLD GENSER Source: http://cern.ch/service-spi/external/MCGenerators/distribution/rivet/rivet-%{realversion}-src.tgz
 Source: git+https://gitlab.com/hepcedar/rivet.git?obj=master/%{n}-%{realversion}&export=%{n}-%{realversion}&output=/%{n}-%{realversion}.tgz
diff --git a/root.spec b/root.spec
index 50f14fe4cfa..05edab8a59a 100644
--- a/root.spec
+++ b/root.spec
@@ -1,5 +1,4 @@
 ### RPM lcg root 6.22.08
-## INITENV +PATH PYTHON27PATH %{i}/lib
 ## INITENV +PATH PYTHON3PATH %{i}/lib
 ## INITENV SET ROOTSYS %{i}
 
@@ -11,7 +10,7 @@ Source: git+https://github.com/%{github_user}/root.git?obj=%{branch}/%{tag}&expo
 
 BuildRequires: cmake ninja
 
-Requires: gsl libjpeg-turbo libpng libtiff giflib pcre python python3 fftw3 xz xrootd libxml2 zlib davix tbb OpenBLAS py3-numpy lz4 freetype zstd
+Requires: gsl libjpeg-turbo libpng libtiff giflib pcre python3 fftw3 xz xrootd libxml2 zlib davix tbb OpenBLAS py3-numpy lz4 freetype zstd
 
 %ifos linux
 Requires: dcap
@@ -32,7 +31,6 @@ rm -rf ../build
 mkdir ../build
 cd ../build
 
-export PYTHONV=$(echo $PYTHON_VERSION | cut -f1,2 -d.)
 export CFLAGS=-D__ROOFIT_NOBANNER
 export CXXFLAGS=-D__ROOFIT_NOBANNER
 
@@ -138,7 +136,7 @@ cmake ../%{n}-%{realversion} \
   -DZLIB_ROOT="${ZLIB_ROOT}" \
   -DZLIB_INCLUDE_DIR="${ZLIB_ROOT}/include" \
   -DZSTD_ROOT="${ZSTD_ROOT}" \
-  -DCMAKE_PREFIX_PATH="${LZ4_ROOT};${GSL_ROOT};${XZ_ROOT};${GIFLIB_ROOT};${FREETYPE_ROOT};${PYTHON_ROOT};${PYTHON3_ROOT};${LIBPNG_ROOT};${PCRE_ROOT};${TBB_ROOT};${OPENBLAS_ROOT};${DAVIX_ROOT};${LIBXML2_ROOT};${ZSTD_ROOT}"
+  -DCMAKE_PREFIX_PATH="${LZ4_ROOT};${GSL_ROOT};${XZ_ROOT};${GIFLIB_ROOT};${FREETYPE_ROOT};${PYTHON3_ROOT};${LIBPNG_ROOT};${PCRE_ROOT};${TBB_ROOT};${OPENBLAS_ROOT};${DAVIX_ROOT};${LIBXML2_ROOT};${ZSTD_ROOT}"
 
 # For CMake cache variables: http://www.cmake.org/cmake/help/v3.2/manual/cmake-language.7.html#lists
 # For environment variables it's OS specific: http://www.cmake.org/Wiki/CMake_Useful_Variables
diff --git a/scram-project-build.file b/scram-project-build.file
index 099f567cba7..e751509135d 100644
--- a/scram-project-build.file
+++ b/scram-project-build.file
@@ -53,7 +53,7 @@ BuildRequires: dwz
 %endif
 
 %if "%{?configtag:set}" != "set"
-%define configtag       V06-02-17
+%define configtag       V06-02-21
 %endif
 
 %if "%{?cvssrc:set}" != "set"
diff --git a/sherpa-toolfile.spec b/sherpa-toolfile.spec
index c8ca187c258..5c43ca6d9cc 100644
--- a/sherpa-toolfile.spec
+++ b/sherpa-toolfile.spec
@@ -40,6 +40,4 @@ cat << \EOF_TOOLFILE >%i/etc/scram.d/sherpa.xml
 </tool>
 EOF_TOOLFILE
 
-export PYTHONV=$(echo $PYTHON_VERSION | cut -f1,2 -d.)
-
 ## IMPORT scram-tools-post
diff --git a/xrootd.spec b/xrootd.spec
index e693f705801..0ef24d0f013 100644
--- a/xrootd.spec
+++ b/xrootd.spec
@@ -1,6 +1,5 @@
 ### RPM external xrootd 4.12.3
 ## INITENV +PATH LD_LIBRARY_PATH %i/lib64
-## INITENV +PATH PYTHON27PATH %{i}/${PYTHON_LIB_SITE_PACKAGES}
 ## INITENV +PATH PYTHON3PATH %{i}/${PYTHON3_LIB_SITE_PACKAGES}
 
 %define tag b122d662f80a46a570876afd32cdaa9f4370dc1d