def print_ccode(expr, **settings):
    print(ccode(expr, **settings))
Always returns EmptyQuerySet.
dataset/ETHPy150Open sympy/sympy/sympy/printing/ccode.py/print_ccode--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/models/query.py/EmptyQuerySet.filter