def _generate_cache(self, env):
        if env:
            c = env.get(self.var, '')
        else:
            c = ''
        gen_cmd = Action(c, **self.gen_kw)
        if not gen_cmd:
            raise SCons.Errors.UserError((self.var, repr(c)) % "$%s value %s cannot be used to create an Action.")
        return gen_cmd
dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/Action.py/LazyAction._generate_cache/swapped operands of `%`