Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing therubyracer:
        ERROR: Failed to build gem native extension.

    C:/Ruby200/bin/ruby.exe extconf.rb
creating Makefile
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
C:/Ruby200/lib/ruby/gems/2.0.0/gems/libv8-3.16.14.3/ext/libv8/builder.rb:58:in `
setup_python!': libv8 requires python 2 to be installed in order to build, but i
t is currently not available (RuntimeError)
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/libv8-3.16.14.3/ext/libv8/build
er.rb:42:in `block in build_libv8!'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/libv8-3.16.14.3/ext/libv8/build
er.rb:40:in `chdir'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/libv8-3.16.14.3/ext/libv8/build
er.rb:40:in `build_libv8!'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/libv8-3.16.14.3/ext/libv8/locat
ion.rb:24:in `install!'
        from extconf.rb:7:in `<main>'


Gem files will remain installed in C:/Ruby200/lib/ruby/gems/2.0.0/gems/libv8-3.1
6.14.3 for inspection.
Results logged to C:/Ruby200/lib/ruby/gems/2.0.0/gems/libv8-3.16.14.3/ext/libv8/
gem_make.out