def p_comp_op1(p):
    p[0] = ast.Lt()
Get the previous valid year.
dataset/ETHPy150Open nucleic/enaml/enaml/core/parser.py/p_comp_op1--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/views/generic/dates.py/YearMixin.get_previous_year