[SciPy-User] save/load scipy sparse csr_matrix in a portable data format

[Dinesh B Vadhia]

How do you save/load a scipy sparse csr_matrix in a portable format? The sparse matrix is created in Python 3.2.2 (Windows 64-bit) to run on Python 2.7.2 (Linux 64-bit) . I've tried numpy.save and numpy.load as well as scipy.io.mmwrite() and scipy.io.mmread() and none of the methods work.
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