title: Calling Custom functions from Python using rpy2
body: <p>Is there a way to call functions defined in a file say myfunc.r </p>
  
  <pre><code>---------------myfunc.r --------------
  myfunc = function(){
    return(c(1,2,3,4,5,6,7,8,9,10))
  }
  
  getname = function(){
    return("chart title")
  }
  
  ---- Python 
     How to call getname() here ?
  </code></pre>
  
  <p>Any help would be greatly appreciated ?</p>