Convert binary (0|1) numpy to integer or binary-string?

Question

Is there a shortcut to Convert binary (0|1) numpy array to integer or binary-string ? F.e.

b = np.array([0,0,0,0,0,1,0,1])   
  => b is 5

np.packbits(b)
         


        

Answer 1

def binary_converter(arr):
    total = 0
    for index, val in enumerate(reversed(arr)):
        total += (val * 2**index)
    print total


In [14]: b = np.array([1,0,1,0,0,0,0,0,1,0,1])
In [15]: binary_converter(b)
1285
In [9]: b = np.array([0,0,0,0,0,1,0,1])
In [10]: binary_converter(b)
5

or

b = np.array([1,0,1,0,0,0,0,0,1,0,1])
sum(val * 2**index for index, val in enumerate(reversed(b)))