Second Assignment

Second Assignment

1. Lists [...,...,...]

   • Lists are ordered, so you can play with the indices and access list items with square brackets ex. myList[2]
   • changeable
   • allow duplicates
   • They can have elements with different data types
   • When you add data to a list its always placed at the end
   • to delete an element we can remove or pop ex. myList.remove("Lemon")

2. Tuples (...,...,...)

   • used to store multiple items in a single variable
   • ordered
     • we can play with the indices and call on items ex. myTuple[2]
       • myTuple[-1] call on the last item
         • myTuple[1:3] will return a subtuple of the 2nd, 3rd and 4th elements
   • unchangeable
   • allow duplicates
   • allow multiple data types

3. Sets {...,...,...}

   • unordered
     • so for loops are helpful to see items
       • or try true or false to see if an element exists in the set
   • unchangeable
   • reject duplicates
   • allow multiple data types
   • add elements by using .add ex. mySet.add("orange")
     • we can also merge sets by using .update ex. if newSet is an additional set, mySet.update(newSet)

4. Dictionaries {key1:value1,...keyn:valuen}

   • used to store data in key:value format
   • VERY powerful to describe items
     • to me dictionaries seem the most useful data structure as far as "real world application goes"
   • the most different out of these four data structures
     • values in a dictionary can be of any data type