Index: VirtualBox-5.2.16/configure
===================================================================
--- VirtualBox-5.2.16.orig/configure
+++ VirtualBox-5.2.16/configure
@@ -1959,17 +1959,17 @@ extern "C" int main(void)
 {
   Py_Initialize();
   printf("found version %s", PY_VERSION);
-#if PY_VERSION_HEX >= 0x02060000
+#if PY_VERSION_HEX >= 0x03060000
   printf(", OK.\n");
   return 0;
 #else
-  printf(", expected version 2.6 or higher\n");
+  printf(", expected version 3.6 or higher\n");
   return 1;
 #endif
 }
 EOF
   found=
-  SUPPYTHONLIBS="python2.7 python2.6 python3.1 python3.2 python3.3 python3.4 python3.4m python3.5 python3.5m python3.6 python3.6m"
+  SUPPYTHONLIBS="python3.6m python3.6 python3.6m"
   for p in $PYTHONDIR; do
     for d in $SUPPYTHONLIBS; do
       for b in lib/x86_64-linux-gnu lib/i386-linux-gnu lib64 lib/64 lib; do
Index: VirtualBox-5.2.16/src/VBox/Installer/linux/routines.sh
===================================================================
--- VirtualBox-5.2.16.orig/src/VBox/Installer/linux/routines.sh
+++ VirtualBox-5.2.16/src/VBox/Installer/linux/routines.sh
@@ -375,8 +375,8 @@ terminate_proc() {
 maybe_run_python_bindings_installer() {
     VBOX_INSTALL_PATH="${1}"
 
-    PYTHON=python
-    if [ "`python -c 'import sys
+    PYTHON=python3
+    if [ "`python3 -c 'import sys
 if sys.version_info >= (2, 6):
     print \"test\"' 2> /dev/null`" != "test" ]; then
         echo  1>&2 "Python 2.6 or later not available, skipping bindings installation."
Index: VirtualBox-5.2.16/src/bldprogs/scm.cpp
===================================================================
--- VirtualBox-5.2.16.orig/src/bldprogs/scm.cpp
+++ VirtualBox-5.2.16/src/bldprogs/scm.cpp
@@ -2031,7 +2031,7 @@ static int scmProcessFileInner(PSCMRWSTA
                             pszTreatAs = "shell";
                         else if (   (cchFirst >= 15 && strncmp(pchFirst, "/usr/bin/python", 15) == 0)
                                  || (cchFirst >= 19 && strncmp(pchFirst, "/usr/bin/env python", 19) == 0) )
-                            pszTreatAs = "python";
+                            pszTreatAs = "python3";
                         else if (   (cchFirst >= 13 && strncmp(pchFirst, "/usr/bin/perl", 13) == 0)
                                  || (cchFirst >= 17 && strncmp(pchFirst, "/usr/bin/env perl", 17) == 0) )
                             pszTreatAs = "perl";
Index: VirtualBox-5.2.16/src/libs/libxml2-2.9.4/configure
===================================================================
--- VirtualBox-5.2.16.orig/src/libs/libxml2-2.9.4/configure
+++ VirtualBox-5.2.16/src/libs/libxml2-2.9.4/configure
@@ -15153,10 +15153,10 @@ PYTHON_SITE_PACKAGES=
 PYTHON_TESTS=
 pythondir=
 if test "$with_python" != "no" ; then
-    if test -x "$with_python/bin/python"
+    if test -x "$with_python/bin/python3"
     then
-        echo Found python in $with_python/bin/python
-        PYTHON="$with_python/bin/python"
+        echo Found python in $with_python/bin/python3
+        PYTHON="$with_python/bin/python3"
     else
         if test -x "$with_python/python.exe"
         then
@@ -15174,7 +15174,8 @@ if test "$with_python" != "no" ; then
                     with_python=`$PYTHON -c "import sys; print(sys.exec_prefix)"`
                 else
                     # Extract the first word of "python python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5", so it can be a program name with args.
-set dummy python python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5; ac_word=$2
+PYTHON=python3
+set dummy python3 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
 if ${ac_cv_path_PYTHON+:} false; then :
Index: VirtualBox-5.2.16/src/VBox/ValidationKit/testboxscript/setup.sh
===================================================================
--- VirtualBox-5.2.16.orig/src/VBox/ValidationKit/testboxscript/setup.sh
+++ VirtualBox-5.2.16/src/VBox/ValidationKit/testboxscript/setup.sh
@@ -644,7 +644,7 @@ import sys;\
 x = sys.version_info[0] == 2 and (sys.version_info[1] >= 6 or (sys.version_info[1] == 5 and sys.version_info[2] >= 1));\
 sys.exit(not x);\
 ";
-    for python in python2.7 python2.6 python2.5 python;
+    for python in python3.6 python2.7 python2.6 python2.5 python;
     do
         python=`which ${python} 2> /dev/null`
         if [ -n "${python}" -a -x "${python}" ]; then
Index: VirtualBox-5.2.16/src/VBox/Installer/linux/rpm/VirtualBox.tmpl.spec
===================================================================
--- VirtualBox-5.2.16.orig/src/VBox/Installer/linux/rpm/VirtualBox.tmpl.spec
+++ VirtualBox-5.2.16/src/VBox/Installer/linux/rpm/VirtualBox.tmpl.spec
@@ -20,7 +20,7 @@
 %define %PYTHON% 1
 %define VBOXDOCDIR %{_defaultdocdir}/%NAME%
 %global __requires_exclude_from ^/usr/lib/virtualbox/VBoxPython.*$
-%{!?python_sitelib: %define python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
+%{!?python_sitelib: %define python_sitelib python3 -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
 
 Summary:   Oracle VM VirtualBox
 Name:      %NAME%
@@ -82,7 +82,7 @@ install -m 755 -d $RPM_BUILD_ROOT/usr/sh
 %if %{?with_python:1}%{!?with_python:0}
 (export VBOX_INSTALL_PATH=/usr/lib/virtualbox && \
   cd ./sdk/installer && \
-  %{__python} ./vboxapisetup.py install --prefix %{_prefix} --root $RPM_BUILD_ROOT)
+  %{python3} ./vboxapisetup.py install --prefix %{_prefix} --root $RPM_BUILD_ROOT)
 %endif
 rm -rf sdk/installer
 mv nls $RPM_BUILD_ROOT/usr/share/virtualbox
Index: VirtualBox-5.2.16/src/libs/libxml2-2.9.4/libxml.spec.in
===================================================================
--- VirtualBox-5.2.16.orig/src/libs/libxml2-2.9.4/libxml.spec.in
+++ VirtualBox-5.2.16/src/libs/libxml2-2.9.4/libxml.spec.in
@@ -101,11 +101,11 @@ rm -fr %{buildroot}
 
 make install DESTDIR=%{buildroot}
 
-%if 0%{?with_python3}
+%if 0%{?with_python}
 make clean
-%configure --with-python=%{__python3}
+%configure --with-python=python3
 make install DESTDIR=%{buildroot}
-%endif # with_python3
+%endif # with_python
 
 
 rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
Index: VirtualBox-5.2.16/src/libs/libxml2-2.9.4/libxml2.spec
===================================================================
--- VirtualBox-5.2.16.orig/src/libs/libxml2-2.9.4/libxml2.spec
+++ VirtualBox-5.2.16/src/libs/libxml2-2.9.4/libxml2.spec
@@ -103,7 +103,7 @@ make install DESTDIR=%{buildroot}
 
 %if 0%{?with_python3}
 make clean
-%configure --with-python=%{__python3}
+%configure --with-python=python3
 make install DESTDIR=%{buildroot}
 %endif # with_python3