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Data Structures

List​

Lists can contain duplicate values.

colors = ['red', 'green', 'blue']

Tuple​

Tuples are immutable whereas lists can be changed.

colors = ('red', 'green', 'blue')

Set​

Unordered mutable list and values in the set must be unique.

A = {1, 2, 3, 4, 5}
B = {1, 2, 6, 7}

allValues = A.union(B) // equals {1, 2, 3, 4, 5, 6, 7}

Set Operations​

  • union
  • intersection (values that are in both A and B)
  • difference (values that are in A but not in A and B, or vice versa)
  • symmetric_difference (values that are in A or B but not in A and B)
  • issuperset (checks if A contains everything also in B)
  • issubset (checks the opposite, )

Dictionary​

Dictionaries are key value based.

phonenumbers = {'alice': 128382929, 'bob': 8473618181}
phonenumbers['alice'] // outputs 128382929