diff --git a/installer/install-opensuse.sh b/installer/install-opensuse.sh
new file mode 100644
--- /dev/null
+++ b/installer/install-opensuse.sh
@@ -0,0 +1,179 @@
+#!/bin/sh
+
+echo "This script will install and configure Cafe grader."
+
+RUBY_VERSION=2.1.2
+echo "This will install Ruby $RUBY_VERSION under RVM"
+
+echo "Installing required apts"
+
+sudo zypper install  \
+  g++ gcc libmysqlclient18 build-essential \
+  git-core openssl libreadline6 libreadline6-devel \
+  zlib1g zlib1g-devel libssl37 libyaml-devel sqlite3-devel \
+  sqlite3 libxml2-devel libxslt-devel autoconf libc6-devel \
+  ncurses-devel automake libtool bison subversion \
+  pkg-config curl nodejs unzip pyflakes java-1_8_0-openjdk \
+  libmysqld-devel mercurial python-setuptools python-devel
+
+
+echo "Installing Ruby $RUBY_VERSION in RVM"
+
+rvm install $RUBY_VERSION
+rvm use $RUBY_VERSION
+
+echo "Fetching Cafe Grader from Git repositories"
+
+echo "Fetching web interface"
+
+mkdir cafe_grader
+cd cafe_grader
+#git clone -q git://github.com/jittat/cafe-grader-web.git web
+hg clone git+ssh://git@github.com/nattee/cafe-grader-web.git web
+
+echo "Configuring rails app"
+
+cp web/config/application.rb.SAMPLE web/config/application.rb
+cp web/config/initializers/cafe_grader_config.rb.SAMPLE web/config/initializers/cafe_grader_config.rb
+
+#replace UTC in application.rb with the system timezone
+timezone='UTC'
+if [ -f '/etc/timezone' ]; then
+  timezone=\"`cat /etc/timezone`\"
+else
+  if [ -f '/etc/sysconfig/clock' ]; then
+    timezone=`grep -e '^TIMEZONE' /etc/sysconfig/clock | grep -o -e '\".*\"'`
+  fi
+fi
+replace="s!'UTC'!$timezone!g"
+sed -i $replace web/config/application.rb
+
+echo "At this point we will need MySQL user and database."
+echo "Have you created MySQL user and database for Cafe grader? (Y/N) "
+read ch
+
+if [ "$ch" = "n" -o "$ch" = "N" ]
+then
+  echo "Please open another terminal and create the user and database for Cafe grader."
+  echo "Don't forget to grant access to that database for the user."
+  echo "Please have username, password, and database name ready before continue."
+  echo 
+  echo "The following are instructions:"
+  echo "1. Run mysql:"
+  echo
+  echo "      mysql -u root -p"
+  echo
+  echo "   if you have just installed mysql, the root password is the one that you have just entered"
+  echo "2. Create a new database, a new user, and grant access to grader database:"
+  echo
+  echo "      create user 'USERNAME'@'localhost' identified by 'PASSWORD';"
+  echo "      create database \`DATABASENEME\`;"
+  echo "      grant all on \`DATABASENAME\`.* to 'USERNAME'@'localhost';"
+  echo
+  echo "   Replace USERNAME, PASSWORD, and DATABASENAME accordingly."
+  echo 
+  echo "Hit enter when ready..."
+  read dummy
+fi
+
+CAFE_PATH=`pwd`
+
+cd web
+
+echo "Please provide grader database:"
+read database
+
+echo "Please provide grader username:"
+read username
+
+echo "Please provide $username password:"
+read password
+
+echo "development:" > config/database.yml
+echo "  adapter: mysql2" >> config/database.yml
+echo "  encoding: utf8" >> config/database.yml
+echo "  reconnect: false" >> config/database.yml
+echo "  database: $database" >> config/database.yml 
+echo "  pool: 5" >> config/database.yml
+echo "  username: $username" >> config/database.yml
+echo "  password: $password" >> config/database.yml
+echo "  host: localhost" >> config/database.yml
+echo "  socket: /run/mysql/mysql.sock" >> config/database.yml
+echo "" >> config/database.yml
+echo "production:" >> config/database.yml
+echo "  adapter: mysql2" >> config/database.yml
+echo "  encoding: utf8" >> config/database.yml
+echo "  reconnect: false" >> config/database.yml
+echo "  database: $database" >> config/database.yml 
+echo "  pool: 5" >> config/database.yml
+echo "  username: $username" >> config/database.yml
+echo "  password: $password" >> config/database.yml
+echo "  host: localhost" >> config/database.yml
+echo "  socket: /run/mysql/mysql.sock" >> config/database.yml
+
+echo "Object.instance_eval{remove_const :GRADER_ROOT_DIR}" >> config/initializers/cafe_grader_config.rb 
+echo "Object.instance_eval{remove_const :GRADING_RESULT_DIR}" >> config/initializers/cafe_grader_config.rb
+echo "GRADER_ROOT_DIR = '$CAFE_PATH/judge'" >> config/initializers/cafe_grader_config.rb
+echo "GRADING_RESULT_DIR = '$CAFE_PATH/judge/result'" >> config/initializers/cafe_grader_config.rb
+
+echo "Installing required gems"
+gem install bundler
+bundle install
+
+echo "Running rake tasks to initialize database"
+
+rake db:migrate
+rake db:seed
+
+echo "Running rake tasks to precompile the assets"
+
+rake assets:precompile
+
+echo "Intalling web interface complete..."
+echo
+echo "Fetching grader"
+
+cd ..
+
+mkdir judge
+cd judge
+#git clone -q git://github.com/jittat/cafe-grader-judge-scripts.git scripts
+hg clone git+ssh://git@github.com/nattee/cafe-grader-judge-scripts.git scripts
+mkdir raw
+mkdir ev-exam
+mkdir ev
+mkdir result
+mkdir log
+
+echo "Configuring grader"
+
+cp scripts/config/env_exam.rb.SAMPLE scripts/config/env_exam.rb
+cp scripts/config/env_grading.rb.SAMPLE scripts/config/env_grading.rb
+
+# create new environment.rb file
+echo "RAILS_ROOT = '$CAFE_PATH/web'" > scripts/config/environment.rb
+echo "GRADER_ROOT = '$CAFE_PATH/judge/scripts'" >> scripts/config/environment.rb
+echo "require File.join(File.dirname(__FILE__),'../lib/boot')" >> scripts/config/environment.rb
+echo "require File.dirname(__FILE__) + \"/env_#{GRADER_ENV}.rb\"" >> scripts/config/environment.rb
+
+# compiling box
+MACHINE_TYPE=`uname -m`
+if [ ${MACHINE_TYPE} == 'x86_64' ]; then
+  gcc -std=c99 -o scripts/std-script/box scripts/std-script/box64-new.c
+else
+  g++ -o scripts/std-script/box scripts/std-script/box.cc
+fi
+
+
+cd ..
+
+echo "Now you are ready to run cafe grader...."
+echo 
+echo "Try:"
+echo
+echo "  cd web"
+echo "  rails s"
+echo
+echo "and access web at http://localhost:3000/"
+echo "The root username is 'root', its password is 'ioionrails'."
+
diff --git a/installer/install.sh b/installer/install.sh
--- a/installer/install.sh
+++ b/installer/install.sh
@@ -9,12 +9,13 @@
 
 sudo apt-get update
 sudo apt-get install mysql-server mysql-client \
-  g++ gcc apache2 libmysqlclient15-dev build-essential \
+  g++ gcc apache2 libmysqlclient20 build-essential \
   git-core openssl libreadline6 libreadline6-dev \
   zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev \
   sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev \
   ncurses-dev automake libtool bison subversion \
-  pkg-config curl nodejs unzip pyflakes ruby default-jdk
+  pkg-config curl nodejs unzip pyflakes ruby default-jdk \
+  libmysqld-dev mercurial python-setuptools python-dev python3-numpy
 
 echo "Installing RVM"
 curl -k -L https://get.rvm.io | bash -s stable
diff --git a/std-script/box64-new.c b/std-script/box64-new.c
--- a/std-script/box64-new.c
+++ b/std-script/box64-new.c
@@ -603,6 +603,18 @@
 /* 311 */ [ __NR_process_vm_writev ] = "process_vm_writev",
 /* 312 */ [ __NR_kcmp ] = "kcmp",
 /* 313 */ [ __NR_finit_module ] = "finit_module",
+/* 314 */ [ __NR_sched_setattr ] = "sched_setattr",
+/* 315 */ [ __NR_sched_getattr ] = "sched_getattr",
+/* 316 */ [ __NR_renameat2 ] = "renameat2",
+/* 317 */ [ __NR_seccomp ] = "seccomp",
+/* 318 */ [ __NR_getrandom ] = "getrandom",
+/* 319 */ [ __NR_memfd_create ] = "memfd_create",
+/* 320 */ [ __NR_kexec_file_load ] = "kexec_file_load",
+/* 321 */ [ __NR_bpf ] = "bpf",
+/* 322 */ [ __NR_execveat ] = "execveat",
+/* 323 */ [ __NR_userfaultfd ] = "userfaultfd",
+/* 324 */ [ __NR_membarrier ] = "membarrier",
+/* 325 */ [ __NR_mlock2 ] = "mlock2",
 };
 #define NUM_SYSCALLS ARRAY_SIZE(syscall_names)
 #define NUM_ACTIONS (NUM_SYSCALLS+64)
diff --git a/std-script/compile b/std-script/compile
--- a/std-script/compile
+++ b/std-script/compile
@@ -147,20 +147,22 @@
   end
 
 when "python"
-  command = "#{PYTHON_CHECKER} #{params[:source_file]}"
-  if system(command, out: params[:message_file])
+  #command = "#{PYTHON_CHECKER} #{params[:source_file]}"
+  #if system(command, out: params[:message_file])
     #compile to python bytecode
     command = "#{PYTHON_INTERPRETER} -c \"import py_compile; py_compile.compile('#{params[:source_file]}','#{params[:source_file]}c');\""
     puts "compile: #{command}"
-    system(command)
-    puts "pwd: " + Dir.pwd
-    Dir.new('.').each {|file| puts file}
-    File.open(params[:output_file],"w") do |out_file|
-      out_file.puts "#!#{PYTHON_INTERPRETER} #{params[:source_file]}c"
+    system(command, err: params[:message_file])
+    if FileTest.exists?("#{params[:source_file]}c")
+      puts "pwd: " + Dir.pwd
+      Dir.new('.').each {|file| puts file}
+      File.open(params[:output_file],"w") do |out_file|
+        out_file.puts "#!#{PYTHON_INTERPRETER} #{params[:source_file]}c"
+      end
+      File.chmod(0755, params[:output_file])
+      FileUtils.cp("#{params[:source_file]}c",params[:output_file])
     end
-    File.chmod(0755, params[:output_file])
-    FileUtils.cp("#{params[:source_file]}c",params[:output_file])
-  end
+  #end
 
 when "php"
   command = "#{PHP_INTERPRETER} #{PHP_OPTIONS} #{params[:source_file]}"
diff --git a/std-script/run b/std-script/run
--- a/std-script/run
+++ b/std-script/run
@@ -92,7 +92,7 @@
 
 JAVA_OPTION = "-s set_robust_list -s futex -s clone -s getppid -s clone -s wait4 -p /usr/bin/ -p ./"
 RUBY_OPTION   = "-p /usr/lib64/ -p /usr/local/lib64/ -p /usr/local/lib/ -p /lib64/ -p /dev/urandom -p #{sandbox_dir}/#{program_name} -p #{sandbox_dir}/ -s set_robust_list -s sched_getaffinity -s clock_gettime -s sigaltstack -s pipe2 -s clone -s futex -s openat -s pipe"
-PYTHON_OPTION = "-p /usr/lib64/ -p /usr/local/lib64/ -p /usr/local/lib/ -p /usr/bin/ -p /lib64/ -p /dev/urandom -p /usr/ -p #{sandbox_dir}/#{program_name} -p ./#{program_name} -p #{sandbox_dir}/#{source_name} -p /proc/sys/crypto/fips_enabled -p /proc/mounts -p /var/lib/dpkg/status -s statfs -s set_robust_list -s openat -s sysinfo -s recvmsg -s connect -s socket -s sendto -s futex -s sigaltstack -E PYTHONNOUSERSITE=yes"
+PYTHON_OPTION = "-p /usr/lib64/ -p /usr/local/lib64/ -p /usr/local/lib/ -p /usr/bin/ -p /lib64/ -p /dev/urandom -p /usr/ -p #{sandbox_dir}/#{program_name} -p ./#{program_name} -p #{sandbox_dir}/#{source_name} -p /proc/sys/crypto/fips_enabled -p /proc/self/status -p /proc/mounts -p /var/lib/dpkg/status -s statfs -s set_robust_list -s openat -s sysinfo -s recvmsg -s connect -s socket -s sendto -s futex -s sigaltstack -s getrandom -E PYTHONNOUSERSITE=yes"
 PHP_OPTION = "-p /usr/lib64/ -p/lib64/ -p /usr/bin/ -p #{sandbox_dir}/#{program_name} -p ./#{program_name} -p /usr/share/ -s setfsuid -s setfsgid -s openat -s set_robust_list -s futex -s clone -s socket -s connect"
 HASKELL_OPTION = "-s set_robust_list -s clock_gettime -s sysinfo -s timer_create -s timer_settime -s futex -s timer_delete"