Python 3.5.2 (v3.5.2:4def2a2901a5, Jun 26 2016, 10:47:25) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "copyright", "credits" or "license()" for more information.
>>> WARNING: The version of Tcl/Tk (8.5.9) in use may be unstable.
Visit http://www.python.org/download/mac/tcltk/ for current information.

>>> 
>>> string = "Smith College"
>>> tokens = string.split()
>>> string
'Smith College'
>>> tokens
['Smith', 'College']
>>> # indexing: strings, lists, dictionaries [..]
>>> string[1]
'm'
>>> tokens[1]
'College'
>>> tokens[1:]
['College']
>>> type(tokens[1:])
<class 'list'>
>>> type(tokens[1])
<class 'str'>
>>> # whenever you see [..:..], that's slicing
>>> # slicing: strings, lists (not dict because no order)
>>> 
>>> 
>>> lst = ["A","B","C"]
>>> lst[3] = "D"
Traceback (most recent call last):
  File "<pyshell#18>", line 1, in <module>
    lst[3] = "D"
IndexError: list assignment index out of range
>>> dictionary = {0: "A", 1: "B", 2: "C"}
>>> dictionary[3] = "D"
>>> dictionary
{0: 'A', 1: 'B', 2: 'C', 3: 'D'}
>>> dictionary[0] = "AA"
>>> dictionary
{0: 'AA', 1: 'B', 2: 'C', 3: 'D'}
>>> dictionary[0] = "A"
>>> dictionary[26] = "a"
>>> dictionary[27] = "b"
>>> dictionary
{0: 'A', 1: 'B', 2: 'C', 3: 'D', 26: 'a', 27: 'b'}
>>> dictionary.keys()
dict_keys([0, 1, 2, 3, 26, 27])
>>> type(dictionary)
<class 'dict'>
>>> for key in dictionary.keys():
	print(key, dictionary[key]) # key, value pair

	
0 A
1 B
2 C
3 D
26 a
27 b
>>> for key in dictionary:
	print(key, dictionary[key]) # key, value pair

	
0 A
1 B
2 C
3 D
26 a
27 b
>>> string_dict = {}
>>> string_dict["hello"] = 5
>>> string_dict["how"] = 3
>>> string_dict["I"] = 1
>>> string_dict
{'hello': 5, 'how': 3, 'I': 1}
>>> string_dict["a"] = 1
>>> string_dict
{'hello': 5, 'how': 3, 'I': 1, 'a': 1}
>>> dict_99 = {}
>>> dict_99[99355252] = ["CSC","BIO","ART","ARS"]
>>> dict_99
{99355252: ['CSC', 'BIO', 'ART', 'ARS']}
>>> dict_99[99355252].append("ENG")
>>> dict_99[99355252].append("EGR")
>>> 
>>> dict_99
{99355252: ['CSC', 'BIO', 'ART', 'ARS', 'ENG', 'EGR']}
>>>