def strip_zero(self):
        for k, v in list(self.items()):
            if not v:
                del self[k]
Return a copy of the value with all occurrences of a substring
dataset/ETHPy150Open sympy/sympy/sympy/polys/rings.py/PolyElement.strip_zero--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/appengine-flask-skeleton/lib/jinja2/filters.py/do_replace