Write a program that lets you know if you can have a key or not, based on your role at the school.
First ask for the user’s role at the school. They can be a student, administrator, or a teacher. (And remember that capitalization is important! ‘Student’ is not the same as ‘student’.)
Example 1: Administrator or Teacher
For example, if this was the input:
Are you an administrator, teacher, or student?: teacher
This should be the output:
Administrators and teachers get keys!
Example 2: Student
And if this was the input:
Are you an administrator, teacher, or student?: student
This should be the output:
Students do not get keys!
(Note: You should also be able to handle a situation where the user enters a value other than administrator, teacher or student and tell them they must be one of the three choices!)
Example 3: Other
If they input anything else:
Are you an administrator, teacher, or student?: secretary
This should be the output:
You can only be an administrator, teacher, or student!
Ответ:
words = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘f’, ‘g’]
# 6. Insert ‘Java’ at index 5
words.insert(5, ‘Java’)
print(words) # [‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘Java’, ‘f’, ‘g’]
# 7. Insert ‘Sharp’ at index 4
words.insert(4, ‘Sharp’)
print(words) # [‘a’, ‘b’, ‘c’, ‘Sharp’, ‘d’, ‘e’, ‘Java’, ‘f’, ‘g’]
# 8. Remove ‘Sharp’
words.remove(‘Sharp’)
print(words) # [‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘Java’, ‘f’, ‘g’]
# 9. Remove ‘q’ (not in the list)
words.remove(‘q’) # ValueError: list.remove(x): x not in list
# 10. Remove ‘w’ (not in the list)
words.remove(‘w’) # ValueError: list.remove(x): x not in list
# 11. Remove the last element
words.pop()
print(words) # [‘a’, ‘b’, ‘c’, ‘d’, ‘e’, ‘Java’, ‘f’]
# 12. Remove the second-to-last element
words.pop(-2)
print(words) # [‘a’, ‘b’, ‘c’, ‘d’, ‘Java’, ‘f’]