using rpy in a django app throws RPy_Exception: R Function “get” not found

Question

Here's the traceback(copy pasted):

Traceback Switch to copy-and-paste view

/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py in get_response
                    response = middleware_method(request) ...
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/usr/local/lib/python2.6/dist-packages/django/middleware/common.py in process_request
            if (not _is_valid_path(request.path_info, urlconf) and ...
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/usr/local/lib/python2.6/dist-packages/django/middleware/common.py in _is_valid_path
        urlresolvers.resolve(path, urlconf) ...
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/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py in resolve
    return get_resolver(urlconf).resolve(path) ...
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/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py in resolve
                    sub_match = pattern.resolve(new_path) ...
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/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py in resolve
                    sub_match = pattern.resolve(new_path) ...
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/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py in resolve
            return ResolverMatch(self.callback, args, kwargs, self.name) ...
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/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py in _get_callback
            self._callback = get_callable(self._callback_str) ...
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/usr/local/lib/python2.6/dist-packages/django/utils/functional.py in wrapper
        result = func(*args) ...
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/usr/local/lib/python2.6/dist-packages/django/core/urlresolvers.py in get_callable
                lookup_view = getattr(import_module(mod_name), func_name) ...
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/usr/local/lib/python2.6/dist-packages/django/utils/importlib.py in import_module
    __import__(name) ...
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/home/harsh/minip-server/website/Video_Performance/views.py in <module>
import datetime,rpy ...
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/usr/lib/python2.6/dist-packages/rpy.py in <module>
r = R() ...
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/usr/lib/python2.6/dist-packages/rpy.py in __init__
        self.get = _rpy.get_fun('get')  # this must happen before any calls to self or its methods! ...
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Any clue?

EDIT: Here's the code

import rpy

don't get me wrong, it's the line the error is coming at. I tried on a separate python prompt and there import rpy does not fail. Only in the website it's failing. Why?