def eye(m=1, n=None):
    return genmat(m,n, lambda i,j: i==j)
Smart cast value to tuple by splittng the input on ",".
dataset/ETHPy150Open sunlightlabs/clearspending/completeness/statlib/matfunc.py/eye--crossover with--dataset/ETHPy150Open funkybob/django-classy-settings/cbs/utils.py/as_tuple