Python 2.7.9 (default, Apr  2 2015, 15:33:21) 
[GCC 4.9.2] on linux2
Type "copyright", "credits" or "license()" for more information.
>>> animals = ['skua', 'killer whale', 'spider', 'orangutan', 'goat']
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat']
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', 'gerbilgerbilgerbil']
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', 'gerbil gerbil gerbil ']
>>> ================================ RESTART ================================
>>> 

Traceback (most recent call last):
  File "/home/brent/teaching/150/lectures/python/lists.py", line 53, in <module>
    animals.append('gerbil') * 3
TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', 'gerbil', 'gerbil', 'gerbil']
>>> ================================ RESTART ================================
>>> 

Traceback (most recent call last):
  File "/home/brent/teaching/150/lectures/python/lists.py", line 60, in <module>
    animals.append('gerbil', 'gerbil', 'gerbil')
TypeError: append() takes exactly one argument (3 given)
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', 'gerbil', 'gerbil', 'gerbil']
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', 'gerbilgerbilgerbil']
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat']
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', 'gerbil', 'gerbil', 'gerbil']
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', 'gerbil', 'gerbil', 'gerbil']
>>> ================================ RESTART ================================
>>> 
>>> animals
['skua', 'killer whale', 'spider', 'orangutan', 'goat', ['gerbil', 'gerbil', 'gerbil']]
>>> lens(animals)

Traceback (most recent call last):
  File "<pyshell#11>", line 1, in <module>
    lens(animals)
NameError: name 'lens' is not defined
>>> len(animals)
6
>>> animals[5]
['gerbil', 'gerbil', 'gerbil']
>>> animals[5][1]
'gerbil'
>>> list('hello')
['h', 'e', 'l', 'l', 'o']
>>> "This is a sentence".split(' ')
['This', 'is', 'a', 'sentence']
>>> "banana".split("n")
['ba', 'a', 'a']
>>> "n".join(['ba','a','a'])
'banana'
>>> " -> ".join(['fun', 'sun', 'sub', 'rub'])
'fun -> sun -> sub -> rub'
>>> ================================ RESTART ================================
>>> 
[1, 3]
>>>