title: Installing rpy2 -- Variable Error
body: <p>I am trying to install rpy2. I have installed R, and rpy2. I try to import rpy2.robjects as robjects.</p>
  
  <p>I get the following error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;pyshell#3&gt;", line 1, in &lt;module&gt;
      import rpy2.robjects as robjects
    File "C:\Python27\lib\site-packages\rpy2\robjects\__init__.py", line 15, in &lt;module&gt;
      import rpy2.rinterface as rinterface
    File "C:\Python27\lib\site-packages\rpy2\rinterface\__init__.py", line 90, in &lt;module&gt;
      raise RuntimeError("Unable to locate R.dll within %s" % R_HOME)
  RuntimeError: Unable to locate R.dll within C:\Program Files\R\R-3.0.2\bin\x64\
  </code></pre>
  
  <p>I have created R_HOME as  C:\Program Files\R\R-3.0.2\bin\64 in my environment variables
  . There is a R.dll in this location what am I doing wrong why wont this work?</p>