how to check if value is in list python

1thelist = ["apple", "avocado", "banana"]
2
3inpt = input("Check an item in the list: ")
4
5if inpt in thelist:
6  print(inpt, "is in the list!")

1>>> letters = [a,b,c,d,e]
2>>> 'a' in letters:
3True

1listA = [item1, item2, item3]
2if item4 in listA:
3  print('yes, item4 is in the list')
4else:
5  print('no, item4 is not in the list')

1# app.py
2
3listA = ['Stranger Things', 'S Education', 'Game of Thrones']
4
5if 'Dark' in listA:
6    print("Yes, 'S Eductation' found in List : ", listA)
7else:
8    print("Nope, 'Dark' not found in the list")
9

1if item in list:
2  #do stuff

1'''    
2    check if list1 contains all elements in list2
3'''
4result =  all(elem in list1  for elem in list2)
5if result:
6    print("Yes, list1 contains all elements in list2")    
7else :
8    print("No, list1 does not contains all elements in list2"