numbers = [1, 2, 3, 4]
print numbers
cheeses = ['swiss', 'cheddar',
           'ricotta', 'gouda']
print cheeses

mixed = [1, 'a', 3.45]
print mixed

single = ['z']
print single, type(single)
empty = []
print empty

print list("I am a string")

print "I am a string".split()

with open("../README.md") as f:
    print f.readlines()[:10]

meat = ['spam']*4
print meat
print [1, 2, 3]*3

print cheeses[0]

cheeses[0] = 'Feta'
print cheeses

l = range(1, 6)
print(l)

print(l[3:])

l[:3]

l[::2]





roster = ['Meghan', 'Tricia', 'Juan',
          'Alton', 'Darrel', 'Jen']
print roster
roster[1:3] = ['Sam', 'Kerri'] # Assign multiple entries at once
print roster
roster[3:5] = ['Tayla'] # Assigning less than selected results in "shrinking" of the list
print roster

roster[2:2] = ['Dana', 'Ryan']
print roster

roster[3:5] = []
print roster

del roster[2:3]
print roster

roster.insert?

roster.insert(2, 'Jakob')
print roster

roster.append('Tonya')
print roster

adds = ['Ian', 'Stacie']
roster.extend(adds)
print roster

roster += ['Anya']
print roster

a = [1, 2, 3]
b = [4, 5, 6]
c = a + b
print a, b, c

a = [1, 2, 3, 4]
b = a
c = a[:]
a[2] = 9
print a, b, c

for index in range(len(roster)):
    print roster[index]

for student in roster:
    print student

for index, student in enumerate(roster):
    print index, student    



nested = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
print nested
print nested[0]
print nested[0][1]

for i in range(len(nested)):
    for j in range(len(nested[i])):
        print nested[i][j]

for nest in nested:
    for item in nest:
        print item

def cumulate(seq):
    c_sum = 0
    for item in seq:
        c_sum += item
    return c_sum

a = [12, 78, 32, 82]
s = cumulate(a)
print s

def only_upper(t):
    res = []
    for s in t:
        if s.isupper():
            res.append(s)
    return res

text = 'Bold cOlOrs Make for Easy Reading'
secret = only_upper(text)
print secret

def change(seq):
    print 'Passed in: ' + str(seq)
    seq.append('new item')
    print 'Changed to: ' + str(seq)

original = [1, 2, 3]
print original
change(original)
print original

def change(seq):
        print 'Passed in: ' + str(seq)
        seq.append('new item')
        print 'Changed to: ' + str(seq)
        new_seq = ['created', 'in', 'function']
        print 'New seq: ' + str(new_seq)

original = [1, 2, 3]
new_seq = ['outside','the','function']
print original
change(original)
print original
print new_seq

def change(seq=[]):
    seq.append(1)
    return seq

original = [1, 2, 3]
for i in range(4):
    print change()

def change(seq=None):
    seq = seq or []
    seq.append(1)
    return seq

original = [1, 2, 3]
for i in range(4):
    print change()

l = []
for s in "something creative":
    l.append(s)

l = [s for s in "something creative"]
print(l)

l = [(i, s, len(s)) for i, s in enumerate("something creative")]
print(l)

print [s for s in "something creative" if s in "eai"]

[x for x in "123"]
print x

i = "precious"
print i
[i for i in ["evil"]]
print i