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Python Python Basics (2015) Logic in Python Membership

Containment

What am I dong wrong here?

membership.py
store_open = None
store_hours = [9, 10, 11, 12, 13, 14, 15, 16, 17, 18]
if store_open is in store_hours:
  store_open = true
  else:
      if time is not in store_hours:
  store_open = false

1 Answer

Michael Hulet
Michael Hulet
47,913 Points

Your problem is that you included the is keyword in your conditionals. The is statement tests to see if one object is the same type of object as another one, and thus is not necessary in this task. If you just remove each instance of the is keyword, your code should work. Try this:

store_open = None
store_hours = [9, 10, 11, 12, 13, 14, 15, 16, 17, 18]
# Notice the lack of an "is" keyword here
if store_open in store_hours:
  store_open = true
  else:
      # No "is" keyword here, either
      if time not in store_hours:
  store_open = false