我不明白的flake8语法错误

Question

我在Employee程序上运行了flake8，以检查是否符合PEP8，我唯一遇到的问题是以下代码行中的语法错误：

return print("Manager's ID:", self.id, "\nSalary:", self.salary,

有人可以告诉我上面一行中的语法错误吗？

对于上下文，该行来自一个名为info（）的方法，该方法显示一些基本的Employee对象信息：

def info(self):
    if isinstance(self, Manager):
      return print("Manager's ID:", self.id, "\nSalary:", self.salary,
                   "\nEmployee's under supervision:", self.print_supervisees(),
                   "\nManager started here on:", self.start_time)
    if isinstance(self, Supervisor):
      return print("Supervisor's ID:", self.id, "\nSalary:", self.salary,
                   "\nEmployee's under supervision:", self.print_supervisees(),
                   "\nSupervisor started here on:", self.start_time)
    elif isinstance(self, Developer):
      return print("Developer's ID:", self.id, "\nSalary:", self.salary,
                   "\nPrograming Language:", self.programming_language,
                   "\nDeveloper stated here on:", self.start_time)
    else:
      return print("Employee ID:", self.id, "\nSalary:", self.salary,
                   "\nEmployee stated here on:", self.start_time)

据我所知，此语法错误不是由我的IDE抛出的，而据我所知，info（）方法对所有雇员都适用。