Rapydo is an interpreter for the R programming language. Currently, it is under heavy maintenance. INSTALLATION: ============= To install Rapydo, first clone it to directory <X>. hg clone https://bitbucket.org/cfbolz/rapydo Then install the environment variable RAPYDO_HOME which should be set to <X>/rapydo. After this, check out PyPy from https://bitbucket.org/pypy/pypy using hg clone https://bitbucket.org/pypy/pypy and add it to the PYTHONPATH environment variable. Now, you should be able to run the test suite. Go to $RAPYDO_HOME and type py.test or any other preferred testing tool which is compatible to py.test.