saving python variable to .mat file with scipy.io.savemat

Question

Hi all,

Here is my python code.

>>import numpy as np
>>import scipy.io
>>exon = [ np.array([[1, 2], [3, 4], [5, 6]]), np.array([[7, 8], [9, 10]]) ]
>>obj_arr = np.zeros((2,), dtype=np.object)
>>obj_arr[0] = exon[0]
>>obj_arr[1] = exon[1]
>>scipy.io.savemat('/tmp/out.mat', mdict={'exon': obj_arr}, format='5')

But I am getting an error message

Traceback (most recent call last):
  File "save_mat.py", line 12, in <module>
    scipy.io.savemat('out.mat', mdict={'exon':obj_arr}, format='5')
TypeError: savemat() got an unexpected keyword argument 'format'

Many thanks for helping to figure out the problem.

Vipin T S

Answer 1

Looks like your scipy.io.savemat() doesn't take a 'format' keyword. Looks like it was added in SciPy 0.7, perhaps you need to upgrade?