Converting an array slicer to Python

I have this code in MATLAB (attached below) and wondered how I'd go about converting it to Python seeing as it keeps giving me an error "TypeError: only integer scalar arrays can be converted to a scalar index"

l0= -200

l0 = -200

hi = 20

hi = 20

x = ones(27000, 1);
udata = ones(27000, 10);
x1 = x((x>lo)&(x<hi));

Unrecognized function or variable 'lo'.

u1 = udata((x>lo)&(x<hi), :);

Answer 1

[Chris]

Here's a demonstration.

import numpy as np
lo = -200
hi = 20
x = np.ones((27000,1))
udata = np.ones((27000,10))

columnMask = (x>lo)&(x<hi)
cn = columnMask.nonzero()[0]
u1 = udata[cn,:]