Programme will not returns the day number not the day name

[Oldman45]

Hello Gribouillis

Thank you for your prompt reply and I have made the changes you suggest but still do not get the output as the day name. Please see below

n = input("Enter a number 0 to 6: ")
day_of_the_week = n

def day_of_the_week (n):
    if n == 0:
        return "Sunday"
    elif n == 1:
        return "Monday"
    elif n == 2:
        return "Tuesday"
    elif n == 3:
        return "Wednesday"
    elif n == 4:
        return "Thursday"
    elif n == 5:
        return "Friday"
    elif n == 6:
        return "Saturday"
    else:
        return "Invalid number"

print("The day of the week is ", day_of_the_week(n))

= RESTART: C:/Users/John/Documents/John''s files/Work/Coding/Think Like a Computer Scientist/Programmes/day_of_the_week.py
Enter a number 0 to 6: 2
The day of the week is Invalid number
>>>
And the output is:

Output:

---

Hello Gribouillis and Buran

Thanks for all your help problem solved and I understand why.