“ TypeError：super（）至少接受1个参数（给定0）”如何解决此问题，我已将参数用作超类名称，但没有用

Question

students = []

class Student:
    school_name = 'Maharshi Science school'

    def __init__(self,name,student_id=336):
        self.name = name
        self.student_id= student_id
        students.append(self)

    def __str__(self):
        return "student: " + self.name

    def get_name_capitalize(self):
        return self.name.capitalize()

    def get_school_name(self):
        return self.school_name


class HighschoolStudent(Student):

    school_name = 'Maharshi High School'

    def get_school_name(self):
        return "This is a high school student"

    def get_name_capitalize(self):
        original_value = super().get_name_capitalize()
        return original_value + "-HighschoolStudent"

chirag = HighschoolStudent('chirag')
print(chirag.get_name_capitalize())

Answer 1

This error will only occur if you are using Python 2. To fix this, replace

super().get_name_capitalize()

with

super(HighschoolStudent, self).get_name_capitalize()

If you upgrade to Python 3, your code should work fine.

Answer 2

You are getting the error due to Python 2. Please try the below code:

students = []

class Student(object):

    school_name = 'Maharshi Science school'

    def __init__(self,name,student_id=336):
        self.name = name
        self.student_id= student_id
        students.append(self)

    def __str__(self):
        return "student: " + self.name

    def get_name_capitalize(self):
        return self.name.capitalize()

    def get_school_name(self):
        return self.school_name

class HighschoolStudent(Student):

    school_name = 'Maharshi High School'

    def get_school_name(self):
        return "This is a high school student"

    def get_name_capitalize(self):
        original_value = super(HighschoolStudent, self).get_name_capitalize()
        return original_value + "-HighschoolStudent"


chirag = HighschoolStudent('chirag')

print(chirag.get_name_capitalize())

Output: Chirag-HighschoolStudent

There are two changes in this:

• class Student --> class Student(object)
• Passing your class name as input in super as mandated by Python 2