RuntimeError: Requires Python 2.5 or above and does not support Python 3

[avelino]

$ pip install boto_rsync
Collecting boto_rsync
  Downloading https://files.pythonhosted.org/packages/b9/d7/989c5beeddfd9ba60c4cefdcad444ce0102e2a82f79f5ece6449e95ecf33/boto_rsync-0.8.1.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-7l2i_dcy/boto-rsync/setup.py", line 10, in <module>
        raise RuntimeError('Requires Python 2.5 or above and does not support '
    RuntimeError: Requires Python 2.5 or above and does not support Python 3

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-7l2i_dcy/boto-rsync/