How to convert it from matlab to python?

How to convert it from matlab to python? function PageRank=page_rank(matr, alpha, e) [m, n] = size (matr): %error function if m = n error ('The input matrix is not a square matrix'): end sum_volum=sum(matr): %rank page N=length (matr): %length for i=1: 1: N B(j, i) = matr (j, i)/sum_volum(1, i): end end C=ones(N): %all ones matrix G=alpha, 'B+(1-alpha)/N, 'C: x0=zeros (N, 1): for i=1: N x1(i, 1)=1/N: end x3-x1-x0: while norm(x3) > e %precison x0=x1: x1=G'x0: x3=x1-x0: end PageRank=x1