title: Octopress can't build with Code Block
body: <p>I try to do something like this <a href="http://octopress.org/docs/plugins/codeblock/" rel="noreferrer">Octopress code block</a></p>
  
  <p>But I can't make it work.</p>
  
  <p>It always shows the following error. My machine is Windows 7.</p>
  
  <pre><code>$ rake generate
  ## Generating Site with Jekyll
  unchanged sass/screen.scss
  Configuration from d:/MyProject/Git/octopress/_config.yml
  Building site: source -&gt; public
  Liquid Exception: No such file or directory - python c:/Ruby193/lib/ruby/gems/1.
  9.1/gems/pygments.rb-0.3.7/lib/pygments/mentos.py in 2013-01-06-octopress.markdo
  wn
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/posix-spawn-0.3.6/lib/posix/spawn.rb:162:in
  `spawn'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/posix-spawn-0.3.6/lib/posix/spawn.rb:162:in
  `spawn'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/posix-spawn-0.3.6/lib/posix/spawn.rb:307:in
  `popen4'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/pygments.rb-0.3.7/lib/pygments/popen.rb:41:i
  n `start'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/pygments.rb-0.3.7/lib/pygments/popen.rb:203:
  in `mentos'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/pygments.rb-0.3.7/lib/pygments/popen.rb:192:
  in `highlight'
  d:/MyProject/Git/octopress/plugins/pygments_code.rb:24:in `pygments'
  d:/MyProject/Git/octopress/plugins/pygments_code.rb:14:in `highlight'
  d:/MyProject/Git/octopress/plugins/code_block.rb:82:in `render'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/liquid-2.3.0/lib/liquid/block.rb:94:in `bloc
  k in render_all'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/liquid-2.3.0/lib/liquid/block.rb:92:in `coll
  ect'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/liquid-2.3.0/lib/liquid/block.rb:92:in `rend
  er_all'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/liquid-2.3.0/lib/liquid/block.rb:82:in `rend
  er'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/liquid-2.3.0/lib/liquid/template.rb:124:in `
  render'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/liquid-2.3.0/lib/liquid/template.rb:132:in `
  render!'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/convertible.rb:79:i
  n `do_layout'
  d:/MyProject/Git/octopress/plugins/post_filters.rb:167:in `do_layout'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/post.rb:195:in `ren
  der'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:200:in `blo
  ck in render'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:199:in `eac
  h'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:199:in `ren
  der'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/jekyll-0.12.0/lib/jekyll/site.rb:41:in `proc
  ess'
  c:/Ruby193/lib/ruby/gems/1.9.1/gems/jekyll-0.12.0/bin/jekyll:264:in `&lt;top (requi
  red)&gt;'
  c:/Ruby193/bin/jekyll:23:in `load'
  c:/Ruby193/bin/jekyll:23:in `&lt;main&gt;'
  Build Failed
  </code></pre>
  
  <p>Without code block, it works fine. I have installed python 2.73 and 3.3 for windows but not luck.</p>
  
  <p>I have tried pygments  0.3.7 and rubypython 0.6.3 as well. It doesn't work.</p>
  
  <p>The funny thing is I google hours and hours,and I don't see anyone else have the same problem.</p>
  
  <p>I must miss something very simple.</p>