小编Amy*_*Amy的帖子

当我运行以下代码时:

# This program calculates gross pay.
def main():

    # Get the number of hours worked.
    hours = int(input('How many hours did you work? '))

    # Get the hourly pay rate.
    pay_rate = float(input('Enter your hourly pay rate: '))

    # Calculate the gross pay.
    gross_pay = hours * pay_rate

    # Display the gross pay.
    print('Gross pay: $', format(gross_pay, ',.2f), sep=''')

# Call the main function.
main()

我收到一个错误:

SyntaxError: invalid syntax. 

最后一个主要部分以红色突出显示.出了什么问题？