Python3 TypeError：接受1个位置参数，但给定2个

Question

I'm new to programming, here is my code.. But I get error, attached... Please help me..

students = []

def add_student(name, student_id):
    student = {"name": name, "student_id": student_id}
    students.append(student)

name = input("Enter student name: ")
student_id = input("Enter student ID: ")

def save_file(student):
    try:
        f = open("students.txt", "a")
        f.write(student + "\n")
        f.close()
    except Exception:
        print("Could not save file")

add_student(name, student_id)
save_file(name, student_id)

Answer 1

Your save_file method takes a variable called student but you pass in name and student_id . So, your method expects one argument but got two. Ergo your error.

You can modify the method to take both the name and ID by adding another argument, similar to what you did with add_student . I would also advise that you look at the stack trace and try to understand what's going on before you ask questions. You'll learn more that way and you may come to understand your problem without seeking help.

Answer 2

The function save_file() is allowed to get only one argument student , but you are passing two arguments name, student_id to the function. That's the error!

Change def save_file(student) as def save_file(student, student_id): to fix the error.

Hope this helps! Cheers!