TypeError：必须是实数，而不是无类型加上更多错误

Question

哦，天哪。我已经成为这里的常客了。我有我所有的代码，但这很奇怪，因为我正在尽力而为，但我似乎无法让它工作。我试过重写它的一部分，甚至做了一些小的改动，但它就是行不通。完全没有。

"""
WeeklyPay.py helps calculate the gross pay of multiple employees based on the hours they worked and their hourly rate
"""

    def main():
        """
        call other modules to get the work done
        :return: None
        """
        total_gross_pay = 0
        total_hours_worked = 0
        employee_quantity = 0

        company_employee = input("Did the employee work this week? Y or y for yes: ")
        while company_employee == "y" or "Y":
            employee_quantity += 1
            name, hours, rate = get_info()
            gross_pay = caculate_gross_pay(hours, rate)
            pay_stub(name, hours, rate, gross_pay)

            total_gross_pay += gross_pay
            total_hours_worked += hours

            company_employee = input("Have more employees worked? Y or y for yes: ")
        show_summary(employee_quantity, total_hours_worked, total_gross_pay)


    def get_info():
        """
        This module gets the needed info from employees
        :return: name, hours_worked, pay_rate
        """
        name = input("Enter the employee's name: ")
        hours_worked = float(input("How many hours did the employee work? "))
        pay_rate = float(input("What is the employee's hourly pay rate? "))
        return name, hours_worked, pay_rate


    def caculate_gross_pay(hours_worked, pay_rate):
        """
        Hours above 40 will be paid time and a half (1.5)
        :param hours_worked:
        :param pay_rate:
        :return: gross_pay
        """
        if hours_worked > 40:
            gross_pay = 40 * pay_rate + (hours_worked - 40) * 1.5 * pay_rate
        else:
            gross_pay = pay_rate * hours_worked

            return gross_pay

    def pay_stub(name, hours_worked, pay_rate, gross_pay):
        """
        This module prints the pay_stub
        :param name:
        :param hours_worked:
        :param pay_rate:
        :param gross_pay:
        """
        print("Employee Name: " + name)
        print("Hours Worked: %.2f"%hours_worked)
        print("Hourly Pay Rate: $%.2f"%pay_rate)
        print("Gross Pay: $%.2f"%gross_pay)


    def show_summary(employee_quantity, total_hours, total_pay):
        """
        :param employee_quantity:
        :param total_hours:
        :param total_pay:
        :return: None
        """
        print("Pay Summary ")
        print("Total number of employees: {}".format(employee_quantity))
        print("Total hours worked by all employees {}".format(total_hours))
        print("Total pay given to employees ${:,.2f}".format(total_pay))

   main()

知道我做错了什么吗？我收到这些错误：

Traceback (most recent call last):
  File "C:/Users/inge scool/PycharmProjects/Week1/WeeklyPay.py", line 80, in <module>
    main()
  File "C:/Users/inge scool/PycharmProjects/Week1/WeeklyPay.py", line 20, in main
    pay_stub(name, hours, rate, gross_pay)
  File "C:/Users/inge scool/PycharmProjects/Week1/WeeklyPay.py", line 65, in pay_stub
    print("Gross Pay: $%.2f"%gross_pay)
TypeError: must be real number, not NoneType

我尝试过在线搜索并不断使用 NoneType 获取有关整数的信息，但它并不完全适用于我正在做的事情。我要加数字吗？

Answer 1

   def caculate_gross_pay(hours_worked, pay_rate):
        """
        Hours above 40 will be paid time and a half (1.5)
        :param hours_worked:
        :param pay_rate:
        :return: gross_pay
        """
        if hours_worked > 40:
            gross_pay = 40 * pay_rate + (hours_worked - 40) * 1.5 * pay_rate
        else:
            gross_pay = pay_rate * hours_worked
        return gross_pay ## remove indent here

在回溯之后，您可以看到 gross_pay 在 if/else 内返回，并且仅在运行 else 时返回。只需取消缩进它就可以了。