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A List is a sequence

[10, 20, 30, 40]
['I School U', 'UC Berkeley', 'Ariel Chait']

Lists can contain Multiple types and nested lists
['facebook', 2.0, 5, [10,20]]
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You can assign a list to a variable!
>>> cheeses = ['Cheddar', 'Jack', 'Gouda']
>>> numbers = [12, 123]
>>> empty = []

>>> print(cheeses)
['Cheddar', 'Jack', 'Gouda']
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We use Brackets with indices to access elements in the list

>>> cheeses[0]
'Cheddar'
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A list is a relationship between indices and elements called a mapping

Cheeses
0 -> 'Cheddar'
1 -> 'Jack'
2 -> 'Gouda'
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Traversing a list

for cheese in cheese:
	print(cheese)
	
for i in range(len(cheeses)):
	print(cheeses[i])
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List Methods
>>> myList = ['a', 'b', 'c']
>>> myList.append('d')
>>> print(myList)
>>> ['a','b','c','d']

>>> myList = ['d','a','c','b']
>>> myList.sort()
>>> print(myList)
>>> ['a','b','c','d']

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Python provides us with a function called sum()
sum() can add up any number of elements or even a list

>>> t = [1, 2, 3]
>>> sum(t)
6
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Strings are lists of sorts

>>> myString = "Hello World"
>>> myString[1]
>>> e

Slicing [start:stop:step]
>>> myString[0:2]
>>> "He"

>>> myString[2:0:-1]
>>> 

>>> myString[::-1]
>>> 'dlroW olleH'
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Exercise
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