创建一个类Teacher 是People的子类，新增属性school moveto方法中的参数改为newschool 按照school排序 创建4个教师对象，放到列表进行排序、

好的，以下是实现代码：

class People:
    def __init__(self, name, age, gender):
        self.name = name
        self.age = age
        self.gender = gender

class Teacher(People):
    def __init__(self, name, age, gender, school):
        super().__init__(name, age, gender)
        self.school = school
    
    def moveto(self, newschool):
        self.school = newschool

teachers = [
    Teacher("Alice", 35, "Female", "A School"),
    Teacher("Bob", 40, "Male", "B School"),
    Teacher("Cathy", 30, "Female", "C School"),
    Teacher("David", 45, "Male", "D School")
]

sorted_teachers = sorted(teachers, key=lambda x: x.school)
for teacher in sorted_teachers:
    print("{} ({}, {}) - {}".format(teacher.name, teacher.age, teacher.gender, teacher.school))

输出结果：

Alice (35, Female) - A School
Bob (40, Male) - B School
Cathy (30, Female) - C School
David (45, Male) - D School

这里定义了一个 `Teacher` 类，它继承自 `People` 类，并新增了一个属性 `school`，表示该老师所在的学校。同时，`moveto` 方法的参数也改成了 `newschool`，用于修改 `school` 属性的值。

接着，我们创建了四个 `Teacher` 对象，并将它们存放在列表 `teachers` 中。使用 `sorted` 函数对 `teachers` 列表进行排序，按照 `school` 属性从小到大的顺序排列。最后，遍历排序后的列表并输出每个老师的信息。