error in class

[non_name092]

class Student():
    def __init__(self, name, CNE, Level ):
        self.name=name
        self.CNE=CNE
        self.Level=Level
    def student_name(self):
        student_info= "name is :" +  self.name + ",CNE is :" + str(self.CNE) + " and Level is :" + self.Level
        return student_info
Student("mohammad ", 1123456789," PhD Student")
print(Student.student_name())

Error:

Error:
Traceback (most recent call last):
  File "C:/Users/HP/Desktop/Telegram Desktop/class practice.py", line 10, in <module>
    print(Student.student_name())
TypeError: student_name() missing 1 required positional argument: 'self'

Process finished with exit code 1

[bowlofred]

student_name() is set up as a class method. It shouldn't be called directly as you do on line 10. Instead, you should be capturing the instance created on line 9 and use that to call the method.

...
mystudent = Student("mohammad ", 1123456789," PhD Student")
print(mystudent.student_name())

Output:
name is :mohammad ,CNE is :1123456789 and Level is : PhD Student