(a, b)
return c.ravel()[:-(c.shape[1] - 1)]
Interleave arrays a and b; b may have multiple columns and must be
    shorter by 1.
Interleave arrays a and b; b may have multiple columns and must be
    shorter by 1.
Interleave arrays a and b ; b may have multiple columns and must be shorter by 1 .
def _interleave(a, b):
    """Interleave arrays a and b; b may have multiple columns and must be
    shorter by 1.
    """
    b = np.column_stack([b]) # Turn b into a column array.
    nx, ny = b.shape
    c = np.zeros((nx + 1, ny + 1))
    c[:, 0] = a
    c[:-1, 1:] = b
    return c.ravel()[:-(c.shape[1] - 1)]
def _interleave ( a , b ) : b = np . column_stack ( [ b ] ) # Turn b into a column array. nx , ny = b . shape c = np . zeros ( ( nx + 1 , ny + 1 ) ) c [ : , 0 ] = a c [ : - 1 , 1 : ] = b return c . ravel ( ) [ : - ( c . shape [ 1 ] - 1 ) ]