I get this error when I try to install this modul:

https://www.odoo.com/apps/modules/8.0/mailchimp_integration/

 Traceback (most recent call last):

  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 537, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 574, in dispatch
    result = self._call_function(**self.params)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 310, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/service/model.py", line 118, in wrapper
    return f(dbname, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 307, in checked_call
    return self.endpoint(*a, **kw)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 803, in __call__
    return self.method(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 403, in response_wrap
    response = f(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 948, in call_button
    action = self._call_kw(model, method, args, {})
  File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 936, in _call_kw
    return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 268, in wrapper
    return old_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 439, in old_api
    result = new_api(recs, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 443, in new_api
    result = [method(rec, *args, **kwargs) for rec in self]
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/module/wizard/base_module_update.py", line 15, in update_module
    self.updated, self.added = self.env['ir.module.module'].update_list()
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 266, in wrapper
    return new_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 508, in new_api
    result = method(self._model, cr, uid, *args, **old_kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/module/module.py", line 651, in update_list
    handler.load_addons()
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 1310, in load_addons
    m = __import__('openerp.addons.' + module)
  File "/usr/lib/python2.7/dist-packages/openerp/modules/module.py", line 80, in load_module
    mod = imp.load_module('openerp.addons.' + module_part, f, path, descr)
  File "/home/giordano/intern_addons/mailchimp_integration/__init__.py", line 2, in <module>
    import wizard
  File "/home/giordano/intern_addons/mailchimp_integration/wizard/__init__.py", line 1, in <module>
    import mailchimp_list
  File "/home/giordano/intern_addons/mailchimp_integration/wizard/mailchimp_list.py", line 3, in <module>
    import mailchimp
ImportError: No module named mailchimp