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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def statdist(generator):
 """Compute the stationary distribution of a Markov chain. Parameters generator : array_like Infinitesimal generator matrix of the Markov chain. Returns ------- dist : numpy.ndarray The unnormalized stationary distribution of the Markov chain. Raises ------ ValueError If the Markov chain does not have a unique stationary distribution. """

    generator = np.asarray(generator)
    n = generator.shape[0]
    with warnings.catch_warnings():
        # The LU decomposition raises a warning when the generator matrix is
        # singular (which it, by construction, is!).
        warnings.filterwarnings("ignore")
        lu, piv = spl.lu_factor(generator.T, check_finite=False)
    # The last row contains 0's only.
    left = lu[:-1,:-1]
    right = -lu[:-1,-1]
    # Solves system `left * x = right`. Assumes that `left` is
    # upper-triangular (ignores lower triangle).
    try:
        res = spl.solve_triangular(left, right, check_finite=False)
    except:
        # Ideally we would like to catch `spl.LinAlgError` only, but there seems
        # to be a bug in scipy, in the code that raises the LinAlgError (!!).
        raise ValueError(
                "stationary distribution could not be computed. "
                "Perhaps the Markov chain has more than one absorbing class?")
    res = np.append(res, 1.0)
    return (n / res.sum()) * res