Error converting from matlab to python

I want to convert the following function into matlab for python:

Função Matlab
cn = reshape(repmat(sn, n_rep, 1), 1,[]);

resultado matlab

cn =

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In python I thus have the converted function

cn=np.arange(sn,n_rep).reshape(1)

result

cn=np.arange(sn,n_rep).reshape(1)

TypeError: only length-1 arrays can be converted to Python scalars

How can I perform the same as matlab, what do I have to change?