Problem in taking input from csv comma-separated-value

[Rajkumar Bolisetti]

My code is as follows:

from sys import argv

script, filename = argv

csv = open(filename)

movies = csv.read()

from scikits.crab.models import MatrixPreferenceDataModel

model = MatrixPreferenceDataModel(movies)

from scikits.crab.metrics import pearson_correlation

from scikits.crab.similarities import UserSimilarity

#Build the similarity

similarity = UserSimilarity(model, pearson_correlation)

from scikits.crab.recommenders.knn import UserBasedRecommender

#Build the User based recommender

recommender = UserBasedRecommender(model, similarity, with_preference=True)

#Recommend items for the user 5 (Toby)

output = recommender.recommend(5)

print output

I am not able to give input from csv file to recommender example on Crab main site. It is giving me error. Can anyone please help me by just providing two or three lines of input format and correct code to give input.

The error im getting is,

Traceback (most recent call last):

  File "movieRecommender_UserBased_trail", line 18, in <module>

    model = MatrixPreferenceDataModel(movies)

  File "/usr/lib/python2.6/site-packages/scikits/crab/models/classes.py", line 88, in __init__

    self.build_model()

  File "/usr/lib/python2.6/site-packages/scikits/crab/models/classes.py", line 108, in build_model

    self._user_ids = np.asanyarray(self.dataset.keys())

AttributeError: 'str' object has no attribute 'keys'