How to compare list of arrays in python?
Question: I want to compare two variables `input_items` and `temp` for equality. To give
you an idea of their datatype -

    
    
    print input_items
    

prints -

`[array([ 50., 1., 0., ..., 0., 0., 0.], dtype=float32), array([ 50., -2., 0.,
..., 0., 0., 0.], dtype=float32)]`

What's the best way to do that in Python?


Answer: I suppose that
[allclose](http://docs.scipy.org/doc/numpy/reference/generated/numpy.allclose.html)
good for your case because you need to compare floats

    
    
    import numpy as np
    a = np.arange(10)
    print a
    #array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
    b = np.arange(10)
    print b
    #array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
    print np.allclose(a, b)
    #True
    b[1] = 10    
    #array([ 0, 10,  2,  3,  4,  5,  6,  7,  8,  9])
    print  np.allclose(a, b)
    #False
    

To compare list of arrays you can combine it with
[all](https://docs.python.org/2/library/functions.html#all)

    
    
    a = [np.array([1, 2, 3]), np.array([1, 2, 3])]
    b = [np.array([1, 2, 3]), np.array([1, 2, 3])]
    all(np.allclose(x, y) for x, y in zip(a, b))#True
    b = [np.array([1, 2, 3]), np.array([1, 2, 4])]
    all(np.allclose(x, y) for x, y in zip(a, b))#False
    

PS Sorry for my poor English

