3.1 and 3.2 Notes

  • A variable is a place to stora a type of data
    • int
    • string
    • boolean
  • To assign a variable, we use the "=" operator
  • Varables can be casted to one another
  • strings are wihting "quotes"
  • booleans are always true or false
  • lists are acessed by index
  • floats are numbers with decimal points
  • name = value
  • Data abstraction manages complexity in programs
  • lists make it easier to acess multiple variables
data = [2, 101, 4, 105, 308, 103, 5, 107,
        100, 306, 106, 102, 108]    # list of the different numerical values
min_valid = 100  # minimum value
max_valid = 200  # maximum value
for i in range(len(data)):
    if data[i] < min_valid or data[i] > max_valid:
        print(i, data[i])

0 2
2 4
4 308
6 5
9 306

albums = [
    ("Welcome to my Nightmare", "Alice Cooper", 1975,   # First album list
     [
         (1, "Welcome to my Nightmare"),
         (2, "Devil's Food"),
         (3, "The Black Widow"),
         (4, "Some Folks"),
         (5, "Only Women Bleed"),
     ]
     ),
    ("Bad Company", "Bad Company", 1974,   # Second album list
     [
         (1, "Can't Get Enough"),
         (2, "Rock Steady"),
         (3, "Ready for Love"),
         (4, "Don't Let Me Down"),
         (5, "Bad Company"),
         (6, "The Way I Choose"),
         (7, "Movin' On"),
         (8, "Seagull"),
     ]
     ),
    ("Nightflight", "Budgie", 1981,
     [
         (1, "I Turned to Stone"),
         (2, "Keeping a Rendezvous"),
         (3, "Reaper of the Glory"),
         (4, "She Used Me Up"),
     ]
     ),
    ("More Mayhem", "Imelda May", 2011,
     [
         (1, "Pulling the Rug"),
         (2, "Psycho"),
         (3, "Mayhem"),
         (4, "Kentish Town Waltz"),
     ]
     ),
]
i = int(input("which number album?"))
j = int(input("which number song?"))
print(albums[i-1][3][j-1][1])

Welcome to my Nightmare