use python 3

PKGBUILD

@@ -43,17 +43,14 @@ build() {
   cd ${srcdir}/build
 
   # Fix Python2/Python3 conflicts
-  /usr/share/ros-build-tools/fix-python-scripts.sh -v 2 ${srcdir}/${_dir}
+  /usr/share/ros-build-tools/fix-python-scripts.sh -v 3 ${srcdir}/${_dir}
 
   # Build project
   cmake ${srcdir}/${_dir} \
         -DCMAKE_BUILD_TYPE=Release \
         -DCATKIN_BUILD_BINARY_PACKAGE=ON \
         -DCMAKE_INSTALL_PREFIX=/opt/ros/melodic \
-        -DPYTHON_EXECUTABLE=/usr/bin/python2 \
-        -DPYTHON_INCLUDE_DIR=/usr/include/python2.7 \
-        -DPYTHON_LIBRARY=/usr/lib/libpython2.7.so \
-        -DPYTHON_BASENAME=-python2.7 \
+        -DPYTHON_EXECUTABLE=/usr/bin/python \
         -DSETUPTOOLS_DEB_LAYOUT=OFF
   make
 }