old_contents: from setuptools import setup
  
  setup(name='server-side',
        version='1.0',
        description='Despliegue ',
        author='Israel Blancas',
        author_email='iblancasa@gmail.com',
        url='http://prometheusinwatch-iblancasa.rhcloud.com/',
        install_requires=['web.py','Mako'],
       )
  
new_contents: from setuptools import setup
  
  setup(name='server-side',
        version='1.0',
        description='Despliegue ',
        author='Israel Blancas',
        author_email='iblancasa@gmail.com',
        url='http://prometheusinwatch-iblancasa.rhcloud.com/',
        install_requires=['web.py','Mako', 'python-dateutil'],
       )
  
subject: Add python-dateutil to install-requires